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Finding the Fourth Proportional to 123,737.54, 170,757.81 and 67,148.91

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Solution

The fourth proportional to 123,737.54, 170,757.81 and 67,148.91 is: 92,665.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,737.54 : 170,757.81 = 67,148.91 : x
  2. Step 2: Convert to fraction form
    123,737.54/170,757.81 = 67,148.91/x
  3. Step 3: Cross multiply
    123,737.54x = 170,757.81 × 67,148.91
  4. Step 4: Simplify right side
    123,737.54x = 11,466,200,815.49
  5. Step 5: Solve for x
    x = 11,466,200,815.49/123,737.54
  6. Step 6: Final answer
    x = 92,665.50

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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.