Hey there! I'm happy to help!
Let's set this up as a proportion (2 equal ratios).
[tex]\frac{miles}{gallons} =\frac{412}{103} =\frac{184}{g}[/tex]
If you multiply the diagonal numbers, their products will be equal. (412×g=103×184). This is called cross multiplying. Now we can solve for g.
412g=18952
Divide both sides by 412.
g=46
Therefore, the boat will need 46 gallons of gasoline to go 184 miles.
Have a wonderful day! :D
