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Finding the Fourth Proportional to 178,766.40, 267,712.20 and 85,162.80

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Solution

The fourth proportional to 178,766.40, 267,712.20 and 85,162.80 is: 127,535.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,766.40 : 267,712.20 = 85,162.80 : x
  2. Step 2: Convert to fraction form
    178,766.40/267,712.20 = 85,162.80/x
  3. Step 3: Cross multiply
    178,766.40x = 267,712.20 × 85,162.80
  4. Step 4: Simplify right side
    178,766.40x = 22,799,120,546.16
  5. Step 5: Solve for x
    x = 22,799,120,546.16/178,766.40
  6. Step 6: Final answer
    x = 127,535.83

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