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Finding the Fourth Proportional to 156,708.04, 216,251.03 and 85,086.42

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Solution

The fourth proportional to 156,708.04, 216,251.03 and 85,086.42 is: 117,415.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,708.04 : 216,251.03 = 85,086.42 : x
  2. Step 2: Convert to fraction form
    156,708.04/216,251.03 = 85,086.42/x
  3. Step 3: Cross multiply
    156,708.04x = 216,251.03 × 85,086.42
  4. Step 4: Simplify right side
    156,708.04x = 18,400,025,538.58
  5. Step 5: Solve for x
    x = 18,400,025,538.58/156,708.04
  6. Step 6: Final answer
    x = 117,415.97

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