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Finding the Fourth Proportional to 101,251.70, 151,877.55 and 42,067.70

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Solution

The fourth proportional to 101,251.70, 151,877.55 and 42,067.70 is: 63,101.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,251.70 : 151,877.55 = 42,067.70 : x
  2. Step 2: Convert to fraction form
    101,251.70/151,877.55 = 42,067.70/x
  3. Step 3: Cross multiply
    101,251.70x = 151,877.55 × 42,067.70
  4. Step 4: Simplify right side
    101,251.70x = 6,389,139,210.14
  5. Step 5: Solve for x
    x = 6,389,139,210.14/101,251.70
  6. Step 6: Final answer
    x = 63,101.55

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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.