Home / 204,951.20-282,854.40-120,139.52

Finding the Fourth Proportional to 204,951.20, 282,854.40 and 120,139.52

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Solution

The fourth proportional to 204,951.20, 282,854.40 and 120,139.52 is: 165,805.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,951.20 : 282,854.40 = 120,139.52 : x
  2. Step 2: Convert to fraction form
    204,951.20/282,854.40 = 120,139.52/x
  3. Step 3: Cross multiply
    204,951.20x = 282,854.40 × 120,139.52
  4. Step 4: Simplify right side
    204,951.20x = 33,981,991,845.89
  5. Step 5: Solve for x
    x = 33,981,991,845.89/204,951.20
  6. Step 6: Final answer
    x = 165,805.28

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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.