Weight is the mass of the object * the acceleration due to gravity, so if the gravity changes the weight changes.
Thus, you want to put the situational data on their own, so the ratios you want to set up is:
[tex] \frac{M \ weight1}{M \ weight2} = \frac{E \ weight1}{E \ weight2}\\
\frac{32lb}{15lb}=\frac{200lb}{x}\\
32*x=200lb*15lb\\
x=93.75lb[/tex]
So a person that weighs 15 pounds on the moon weighs 93.75 pounds on Earth.
