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Finding the Fourth Proportional to 120,714.59, 166,616.78 and 82,489.61

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Solution

The fourth proportional to 120,714.59, 166,616.78 and 82,489.61 is: 113,856.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,714.59 : 166,616.78 = 82,489.61 : x
  2. Step 2: Convert to fraction form
    120,714.59/166,616.78 = 82,489.61/x
  3. Step 3: Cross multiply
    120,714.59x = 166,616.78 × 82,489.61
  4. Step 4: Simplify right side
    120,714.59x = 13,744,152,574.80
  5. Step 5: Solve for x
    x = 13,744,152,574.80/120,714.59
  6. Step 6: Final answer
    x = 113,856.60

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