Home / 203,986.97-281,248.90-135,854.57

Finding the Fourth Proportional to 203,986.97, 281,248.90 and 135,854.57

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Solution

The fourth proportional to 203,986.97, 281,248.90 and 135,854.57 is: 187,310.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,986.97 : 281,248.90 = 135,854.57 : x
  2. Step 2: Convert to fraction form
    203,986.97/281,248.90 = 135,854.57/x
  3. Step 3: Cross multiply
    203,986.97x = 281,248.90 × 135,854.57
  4. Step 4: Simplify right side
    203,986.97x = 38,208,948,372.47
  5. Step 5: Solve for x
    x = 38,208,948,372.47/203,986.97
  6. Step 6: Final answer
    x = 187,310.73

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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.