relationship between numbers: riddle anyone?

[Tom Ma]

I am looking for an expression (or mathematic formula)
that when applied to a source value, it will yield a result value in the following relationship:

SOURCE = 50, RESULT = 200
SOURCE = 90, RESULT = 111
SOURCE = 100, RESULT = 100
SOURCE = 110, RESULT = 91
SOURCE = 150, RESULT = 66.667
SOURCE = 200, RESULT = 50

I am basically trying to negate scaling in a project.
This formula would apply to AE, as well as flame/smoke, so if you know the formula, platform agnostic code would be great!

thanks!

[Dan Ebberts]

result = 10000/source

Dan

[Tom Ma]

you make it seem easy..
many thanks again Dan!