Home / 148,380.38-204,765.13-80,398.09

Finding the Fourth Proportional to 148,380.38, 204,765.13 and 80,398.09

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Solution

The fourth proportional to 148,380.38, 204,765.13 and 80,398.09 is: 110,949.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,380.38 : 204,765.13 = 80,398.09 : x
  2. Step 2: Convert to fraction form
    148,380.38/204,765.13 = 80,398.09/x
  3. Step 3: Cross multiply
    148,380.38x = 204,765.13 × 80,398.09
  4. Step 4: Simplify right side
    148,380.38x = 16,462,725,350.60
  5. Step 5: Solve for x
    x = 16,462,725,350.60/148,380.38
  6. Step 6: Final answer
    x = 110,949.48

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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.