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Finding the Fourth Proportional to 156,896.33, 216,516.17 and 85,276.35

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Solution

The fourth proportional to 156,896.33, 216,516.17 and 85,276.35 is: 117,680.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,896.33 : 216,516.17 = 85,276.35 : x
  2. Step 2: Convert to fraction form
    156,896.33/216,516.17 = 85,276.35/x
  3. Step 3: Cross multiply
    156,896.33x = 216,516.17 × 85,276.35
  4. Step 4: Simplify right side
    156,896.33x = 18,463,708,906.77
  5. Step 5: Solve for x
    x = 18,463,708,906.77/156,896.33
  6. Step 6: Final answer
    x = 117,680.95

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