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Finding the Fourth Proportional to 123,425.54, 185,138.31 and 29,931.29

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Solution

The fourth proportional to 123,425.54, 185,138.31 and 29,931.29 is: 44,896.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,425.54 : 185,138.31 = 29,931.29 : x
  2. Step 2: Convert to fraction form
    123,425.54/185,138.31 = 29,931.29/x
  3. Step 3: Cross multiply
    123,425.54x = 185,138.31 × 29,931.29
  4. Step 4: Simplify right side
    123,425.54x = 5,541,428,446.72
  5. Step 5: Solve for x
    x = 5,541,428,446.72/123,425.54
  6. Step 6: Final answer
    x = 44,896.94

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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.