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Finding the Fourth Proportional to 123,438.78, 185,158.17 and 34,701.26

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Solution

The fourth proportional to 123,438.78, 185,158.17 and 34,701.26 is: 52,051.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,438.78 : 185,158.17 = 34,701.26 : x
  2. Step 2: Convert to fraction form
    123,438.78/185,158.17 = 34,701.26/x
  3. Step 3: Cross multiply
    123,438.78x = 185,158.17 × 34,701.26
  4. Step 4: Simplify right side
    123,438.78x = 6,425,220,872.50
  5. Step 5: Solve for x
    x = 6,425,220,872.50/123,438.78
  6. Step 6: Final answer
    x = 52,051.88

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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.