Finding the Fourth Proportional to 125,035.13, 187,545.41 and 74,777.87
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Solution
The fourth proportional to 125,035.13, 187,545.41 and 74,777.87 is: 112,162.45
Step by Step Solution
- Step 1: Write the proportion equation
125,035.13 : 187,545.41 = 74,777.87 : x - Step 2: Convert to fraction form
125,035.13/187,545.41 = 74,777.87/x - Step 3: Cross multiply
125,035.13x = 187,545.41 × 74,777.87 - Step 4: Simplify right side
125,035.13x = 14,024,246,663.47 - Step 5: Solve for x
x = 14,024,246,663.47/125,035.13 - Step 6: Final answer
x = 112,162.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.