Home / 148,540.20-204,979.75-80,555.92

Finding the Fourth Proportional to 148,540.20, 204,979.75 and 80,555.92

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Solution

The fourth proportional to 148,540.20, 204,979.75 and 80,555.92 is: 111,164.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,540.20 : 204,979.75 = 80,555.92 : x
  2. Step 2: Convert to fraction form
    148,540.20/204,979.75 = 80,555.92/x
  3. Step 3: Cross multiply
    148,540.20x = 204,979.75 × 80,555.92
  4. Step 4: Simplify right side
    148,540.20x = 16,512,332,342.62
  5. Step 5: Solve for x
    x = 16,512,332,342.62/148,540.20
  6. Step 6: Final answer
    x = 111,164.06

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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.