Home / 135,691.42-187,246.51-75,257.73

Finding the Fourth Proportional to 135,691.42, 187,246.51 and 75,257.73

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Solution

The fourth proportional to 135,691.42, 187,246.51 and 75,257.73 is: 103,851.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,691.42 : 187,246.51 = 75,257.73 : x
  2. Step 2: Convert to fraction form
    135,691.42/187,246.51 = 75,257.73/x
  3. Step 3: Cross multiply
    135,691.42x = 187,246.51 × 75,257.73
  4. Step 4: Simplify right side
    135,691.42x = 14,091,747,293.02
  5. Step 5: Solve for x
    x = 14,091,747,293.02/135,691.42
  6. Step 6: Final answer
    x = 103,851.42

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1.5x scale

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.