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Finding the Fourth Proportional to 156,873.85, 216,487.60 and 85,253.88

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Solution

The fourth proportional to 156,873.85, 216,487.60 and 85,253.88 is: 117,651.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,873.85 : 216,487.60 = 85,253.88 : x
  2. Step 2: Convert to fraction form
    156,873.85/216,487.60 = 85,253.88/x
  3. Step 3: Cross multiply
    156,873.85x = 216,487.60 × 85,253.88
  4. Step 4: Simplify right side
    156,873.85x = 18,456,408,470.58
  5. Step 5: Solve for x
    x = 18,456,408,470.58/156,873.85
  6. Step 6: Final answer
    x = 117,651.28

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