Home / 131,682.46-181,721.22-71,254.18

Finding the Fourth Proportional to 131,682.46, 181,721.22 and 71,254.18

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Solution

The fourth proportional to 131,682.46, 181,721.22 and 71,254.18 is: 98,330.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,682.46 : 181,721.22 = 71,254.18 : x
  2. Step 2: Convert to fraction form
    131,682.46/181,721.22 = 71,254.18/x
  3. Step 3: Cross multiply
    131,682.46x = 181,721.22 × 71,254.18
  4. Step 4: Simplify right side
    131,682.46x = 12,948,396,519.70
  5. Step 5: Solve for x
    x = 12,948,396,519.70/131,682.46
  6. Step 6: Final answer
    x = 98,330.46

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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.