Home / 205,067.60-282,939.84-120,139.04

Finding the Fourth Proportional to 205,067.60, 282,939.84 and 120,139.04

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Solution

The fourth proportional to 205,067.60, 282,939.84 and 120,139.04 is: 165,760.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,067.60 : 282,939.84 = 120,139.04 : x
  2. Step 2: Convert to fraction form
    205,067.60/282,939.84 = 120,139.04/x
  3. Step 3: Cross multiply
    205,067.60x = 282,939.84 × 120,139.04
  4. Step 4: Simplify right side
    205,067.60x = 33,992,120,755.35
  5. Step 5: Solve for x
    x = 33,992,120,755.35/205,067.60
  6. Step 6: Final answer
    x = 165,760.56

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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.