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Finding the Fourth Proportional to 101,425.87, 152,135.11 and 38,255.79

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Solution

The fourth proportional to 101,425.87, 152,135.11 and 38,255.79 is: 57,382.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,425.87 : 152,135.11 = 38,255.79 : x
  2. Step 2: Convert to fraction form
    101,425.87/152,135.11 = 38,255.79/x
  3. Step 3: Cross multiply
    101,425.87x = 152,135.11 × 38,255.79
  4. Step 4: Simplify right side
    101,425.87x = 5,820,049,438.11
  5. Step 5: Solve for x
    x = 5,820,049,438.11/101,425.87
  6. Step 6: Final answer
    x = 57,382.30

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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.