Finding the Fourth Proportional to 124,737.92, 172,142.20 and 68,148.08
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Solution
The fourth proportional to 124,737.92, 172,142.20 and 68,148.08 is: 94,046.46
Step by Step Solution
- Step 1: Write the proportion equation
124,737.92 : 172,142.20 = 68,148.08 : x - Step 2: Convert to fraction form
124,737.92/172,142.20 = 68,148.08/x - Step 3: Cross multiply
124,737.92x = 172,142.20 × 68,148.08 - Step 4: Simplify right side
124,737.92x = 11,731,160,416.98 - Step 5: Solve for x
x = 11,731,160,416.98/124,737.92 - Step 6: Final answer
x = 94,046.46
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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.