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Finding the Fourth Proportional to 125,869.41, 188,748.72 and 66,691.44

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Solution

The fourth proportional to 125,869.41, 188,748.72 and 66,691.44 is: 100,007.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,869.41 : 188,748.72 = 66,691.44 : x
  2. Step 2: Convert to fraction form
    125,869.41/188,748.72 = 66,691.44/x
  3. Step 3: Cross multiply
    125,869.41x = 188,748.72 × 66,691.44
  4. Step 4: Simplify right side
    125,869.41x = 12,587,923,934.96
  5. Step 5: Solve for x
    x = 12,587,923,934.96/125,869.41
  6. Step 6: Final answer
    x = 100,007.81

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