Home / 131,657.88-181,689.18-71,229.82

Finding the Fourth Proportional to 131,657.88, 181,689.18 and 71,229.82

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Solution

The fourth proportional to 131,657.88, 181,689.18 and 71,229.82 is: 98,297.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,657.88 : 181,689.18 = 71,229.82 : x
  2. Step 2: Convert to fraction form
    131,657.88/181,689.18 = 71,229.82/x
  3. Step 3: Cross multiply
    131,657.88x = 181,689.18 × 71,229.82
  4. Step 4: Simplify right side
    131,657.88x = 12,941,687,400.24
  5. Step 5: Solve for x
    x = 12,941,687,400.24/131,657.88
  6. Step 6: Final answer
    x = 98,297.86

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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.