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Finding the Fourth Proportional to 101,115.88, 151,691.61 and 34,540.40

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Solution

The fourth proportional to 101,115.88, 151,691.61 and 34,540.40 is: 51,816.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,115.88 : 151,691.61 = 34,540.40 : x
  2. Step 2: Convert to fraction form
    101,115.88/151,691.61 = 34,540.40/x
  3. Step 3: Cross multiply
    101,115.88x = 151,691.61 × 34,540.40
  4. Step 4: Simplify right side
    101,115.88x = 5,239,488,886.04
  5. Step 5: Solve for x
    x = 5,239,488,886.04/101,115.88
  6. Step 6: Final answer
    x = 51,816.68

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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.