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Finding the Fourth Proportional to 101,414.40, 152,251.20 and 54,067.20

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Solution

The fourth proportional to 101,414.40, 152,251.20 and 54,067.20 is: 81,169.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,414.40 : 152,251.20 = 54,067.20 : x
  2. Step 2: Convert to fraction form
    101,414.40/152,251.20 = 54,067.20/x
  3. Step 3: Cross multiply
    101,414.40x = 152,251.20 × 54,067.20
  4. Step 4: Simplify right side
    101,414.40x = 8,231,796,080.64
  5. Step 5: Solve for x
    x = 8,231,796,080.64/101,414.40
  6. Step 6: Final answer
    x = 81,169.89

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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.