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Finding the Fourth Proportional to 125,641.85, 173,380.98 and 71,931.86

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Solution

The fourth proportional to 125,641.85, 173,380.98 and 71,931.86 is: 99,263.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,641.85 : 173,380.98 = 71,931.86 : x
  2. Step 2: Convert to fraction form
    125,641.85/173,380.98 = 71,931.86/x
  3. Step 3: Cross multiply
    125,641.85x = 173,380.98 × 71,931.86
  4. Step 4: Simplify right side
    125,641.85x = 12,471,616,433.04
  5. Step 5: Solve for x
    x = 12,471,616,433.04/125,641.85
  6. Step 6: Final answer
    x = 99,263.24

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