Finding the Fourth Proportional to 157,732.92, 217,671.84 and 86,113.53
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Solution
The fourth proportional to 157,732.92, 217,671.84 and 86,113.53 is: 118,836.90
Step by Step Solution
- Step 1: Write the proportion equation
157,732.92 : 217,671.84 = 86,113.53 : x - Step 2: Convert to fraction form
157,732.92/217,671.84 = 86,113.53/x - Step 3: Cross multiply
157,732.92x = 217,671.84 × 86,113.53 - Step 4: Simplify right side
157,732.92x = 18,744,490,524.00 - Step 5: Solve for x
x = 18,744,490,524.00/157,732.92 - Step 6: Final answer
x = 118,836.90
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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.