Finding the Fourth Proportional to 117,334.75, 161,921.81 and 63,619.68
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Solution
The fourth proportional to 117,334.75, 161,921.81 and 63,619.68 is: 87,795.08
Step by Step Solution
- Step 1: Write the proportion equation
117,334.75 : 161,921.81 = 63,619.68 : x - Step 2: Convert to fraction form
117,334.75/161,921.81 = 63,619.68/x - Step 3: Cross multiply
117,334.75x = 161,921.81 × 63,619.68 - Step 4: Simplify right side
117,334.75x = 10,301,413,737.22 - Step 5: Solve for x
x = 10,301,413,737.22/117,334.75 - Step 6: Final answer
x = 87,795.08
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.