# unit conversion

#### snewonoj

Hi, I have this easy equation to figure out mentally, but I am wondering the correct way to write the formula.
I am trying to figure out \$/ kBTU of propane given the below known factors. (kBTU is a unit of energy) Known factors Propane = \$2.96 / Gallon
Propane = 92 kBTU / Gallon

It stands to reason that I could take \$2.96 and divide it by 92 kBTU to find that propane costs \$0.032 / kBTU
What is the correct way to figure this out? How would your right this as a formula? Is there a more methodical approach to figuring this out than to figure it out in one's head?
Thank you.

Last edited by a moderator:

#### skeeter

Math Team
Hi, I have this easy equation to figure out mentally, but I am wondering the correct way to write the formula.
I am trying to figure out \$/ kBTU of propane given the below known factors. (kBTU is a unit of energy) Known factors Propane = \$2.96 / Gallon
Propane = 92 kBTU / Gallon

It stands to reason that I could take \$2.96 and divide it by 92 kBTU to find that propane costs \$0.032 / kBTU
What is the correct way to figure this out? How would your right this as a formula? Is there a more methodical approach to figuring this out than to figure it out in one's head?
Thank you.
quoted message and inactivated Latex as a courtesy ...

#### snewonoj

Thanks skeeter.
I must admit, I do not understand what is meant "inactivated Latex" but I sure a thank you is in order.

Additionally I corrected some typos in following.

What is the correct way to figure this out? How would you write this as a formula? Is there a more methodical approach to figuring this out than to figure it out in one's head?

#### snewonoj

I think I figured it out.
The equation looks like...

topsquark