Home / 125,931.30-188,778.18-62,691.57

Finding the Fourth Proportional to 125,931.30, 188,778.18 and 62,691.57

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Solution

The fourth proportional to 125,931.30, 188,778.18 and 62,691.57 is: 93,978.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,931.30 : 188,778.18 = 62,691.57 : x
  2. Step 2: Convert to fraction form
    125,931.30/188,778.18 = 62,691.57/x
  3. Step 3: Cross multiply
    125,931.30x = 188,778.18 × 62,691.57
  4. Step 4: Simplify right side
    125,931.30x = 11,834,800,485.94
  5. Step 5: Solve for x
    x = 11,834,800,485.94/125,931.30
  6. Step 6: Final answer
    x = 93,978.23

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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.