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Finding the Fourth Proportional to 148,147.52, 204,443.96 and 81,079.52

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Solution

The fourth proportional to 148,147.52, 204,443.96 and 81,079.52 is: 111,889.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,147.52 : 204,443.96 = 81,079.52 : x
  2. Step 2: Convert to fraction form
    148,147.52/204,443.96 = 81,079.52/x
  3. Step 3: Cross multiply
    148,147.52x = 204,443.96 × 81,079.52
  4. Step 4: Simplify right side
    148,147.52x = 16,576,218,143.70
  5. Step 5: Solve for x
    x = 16,576,218,143.70/148,147.52
  6. Step 6: Final answer
    x = 111,889.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.