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Finding the Fourth Proportional to 123,740.69, 185,641.22 and 39,500.87

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Solution

The fourth proportional to 123,740.69, 185,641.22 and 39,500.87 is: 59,260.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,740.69 : 185,641.22 = 39,500.87 : x
  2. Step 2: Convert to fraction form
    123,740.69/185,641.22 = 39,500.87/x
  3. Step 3: Cross multiply
    123,740.69x = 185,641.22 × 39,500.87
  4. Step 4: Simplify right side
    123,740.69x = 7,332,988,646.22
  5. Step 5: Solve for x
    x = 7,332,988,646.22/123,740.69
  6. Step 6: Final answer
    x = 59,260.93

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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.