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Finding the Fourth Proportional to 123,737.51, 170,757.87 and 67,148.88

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Solution

The fourth proportional to 123,737.51, 170,757.87 and 67,148.88 is: 92,665.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,737.51 : 170,757.87 = 67,148.88 : x
  2. Step 2: Convert to fraction form
    123,737.51/170,757.87 = 67,148.88/x
  3. Step 3: Cross multiply
    123,737.51x = 170,757.87 × 67,148.88
  4. Step 4: Simplify right side
    123,737.51x = 11,466,199,721.69
  5. Step 5: Solve for x
    x = 11,466,199,721.69/123,737.51
  6. Step 6: Final answer
    x = 92,665.52

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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.