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Finding the Fourth Proportional to 129,283.92, 178,414.02 and 71,927.82

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Solution

The fourth proportional to 129,283.92, 178,414.02 and 71,927.82 is: 99,261.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,283.92 : 178,414.02 = 71,927.82 : x
  2. Step 2: Convert to fraction form
    129,283.92/178,414.02 = 71,927.82/x
  3. Step 3: Cross multiply
    129,283.92x = 178,414.02 × 71,927.82
  4. Step 4: Simplify right side
    129,283.92x = 12,832,931,516.04
  5. Step 5: Solve for x
    x = 12,832,931,516.04/129,283.92
  6. Step 6: Final answer
    x = 99,261.62

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