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Finding the Fourth Proportional to 127,737.72, 176,259.96 and 72,545.14

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Solution

The fourth proportional to 127,737.72, 176,259.96 and 72,545.14 is: 100,102.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,737.72 : 176,259.96 = 72,545.14 : x
  2. Step 2: Convert to fraction form
    127,737.72/176,259.96 = 72,545.14/x
  3. Step 3: Cross multiply
    127,737.72x = 176,259.96 × 72,545.14
  4. Step 4: Simplify right side
    127,737.72x = 12,786,803,474.59
  5. Step 5: Solve for x
    x = 12,786,803,474.59/127,737.72
  6. Step 6: Final answer
    x = 100,102.02

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1.5x scale

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.