Home / 123,723.28-170,738.13-67,134.66

Finding the Fourth Proportional to 123,723.28, 170,738.13 and 67,134.66

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Solution

The fourth proportional to 123,723.28, 170,738.13 and 67,134.66 is: 92,645.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,723.28 : 170,738.13 = 67,134.66 : x
  2. Step 2: Convert to fraction form
    123,723.28/170,738.13 = 67,134.66/x
  3. Step 3: Cross multiply
    123,723.28x = 170,738.13 × 67,134.66
  4. Step 4: Simplify right side
    123,723.28x = 11,462,445,540.44
  5. Step 5: Solve for x
    x = 11,462,445,540.44/123,723.28
  6. Step 6: Final answer
    x = 92,645.83

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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.