Home / 132,212.12-182,451.68-71,781.55

Finding the Fourth Proportional to 132,212.12, 182,451.68 and 71,781.55

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Solution

The fourth proportional to 132,212.12, 182,451.68 and 71,781.55 is: 99,057.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,212.12 : 182,451.68 = 71,781.55 : x
  2. Step 2: Convert to fraction form
    132,212.12/182,451.68 = 71,781.55/x
  3. Step 3: Cross multiply
    132,212.12x = 182,451.68 × 71,781.55
  4. Step 4: Simplify right side
    132,212.12x = 13,096,663,844.65
  5. Step 5: Solve for x
    x = 13,096,663,844.65/132,212.12
  6. Step 6: Final answer
    x = 99,057.97

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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.