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Finding the Fourth Proportional to 148,687.28, 205,182.96 and 80,702.80

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Solution

The fourth proportional to 148,687.28, 205,182.96 and 80,702.80 is: 111,366.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,687.28 : 205,182.96 = 80,702.80 : x
  2. Step 2: Convert to fraction form
    148,687.28/205,182.96 = 80,702.80/x
  3. Step 3: Cross multiply
    148,687.28x = 205,182.96 × 80,702.80
  4. Step 4: Simplify right side
    148,687.28x = 16,558,839,384.29
  5. Step 5: Solve for x
    x = 16,558,839,384.29/148,687.28
  6. Step 6: Final answer
    x = 111,366.89

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