Home / 204,819.72-282,535.45-128,205.82

Finding the Fourth Proportional to 204,819.72, 282,535.45 and 128,205.82

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Solution

The fourth proportional to 204,819.72, 282,535.45 and 128,205.82 is: 176,851.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,819.72 : 282,535.45 = 128,205.82 : x
  2. Step 2: Convert to fraction form
    204,819.72/282,535.45 = 128,205.82/x
  3. Step 3: Cross multiply
    204,819.72x = 282,535.45 × 128,205.82
  4. Step 4: Simplify right side
    204,819.72x = 36,222,689,046.32
  5. Step 5: Solve for x
    x = 36,222,689,046.32/204,819.72
  6. Step 6: Final answer
    x = 176,851.57

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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.