Home / 135,691.90-187,248.22-75,257.19

Finding the Fourth Proportional to 135,691.90, 187,248.22 and 75,257.19

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Solution

The fourth proportional to 135,691.90, 187,248.22 and 75,257.19 is: 103,851.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,691.90 : 187,248.22 = 75,257.19 : x
  2. Step 2: Convert to fraction form
    135,691.90/187,248.22 = 75,257.19/x
  3. Step 3: Cross multiply
    135,691.90x = 187,248.22 × 75,257.19
  4. Step 4: Simplify right side
    135,691.90x = 14,091,774,869.70
  5. Step 5: Solve for x
    x = 14,091,774,869.70/135,691.90
  6. Step 6: Final answer
    x = 103,851.26

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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.