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Finding the Fourth Proportional to 125,422.80, 188,134.92 and 31,928.64

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Solution

The fourth proportional to 125,422.80, 188,134.92 and 31,928.64 is: 47,893.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,422.80 : 188,134.92 = 31,928.64 : x
  2. Step 2: Convert to fraction form
    125,422.80/188,134.92 = 31,928.64/x
  3. Step 3: Cross multiply
    125,422.80x = 188,134.92 × 31,928.64
  4. Step 4: Simplify right side
    125,422.80x = 6,006,892,132.11
  5. Step 5: Solve for x
    x = 6,006,892,132.11/125,422.80
  6. Step 6: Final answer
    x = 47,893.14

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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.