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Finding the Fourth Proportional to 148,112.52, 204,400.42 and 81,044.52

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Solution

The fourth proportional to 148,112.52, 204,400.42 and 81,044.52 is: 111,844.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,112.52 : 204,400.42 = 81,044.52 : x
  2. Step 2: Convert to fraction form
    148,112.52/204,400.42 = 81,044.52/x
  3. Step 3: Cross multiply
    148,112.52x = 204,400.42 × 81,044.52
  4. Step 4: Simplify right side
    148,112.52x = 16,565,533,926.70
  5. Step 5: Solve for x
    x = 16,565,533,926.70/148,112.52
  6. Step 6: Final answer
    x = 111,844.25

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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.