Home / 220,443.12-330,613.92-108,010.80

Finding the Fourth Proportional to 220,443.12, 330,613.92 and 108,010.80

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Solution

The fourth proportional to 220,443.12, 330,613.92 and 108,010.80 is: 161,991.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,443.12 : 330,613.92 = 108,010.80 : x
  2. Step 2: Convert to fraction form
    220,443.12/330,613.92 = 108,010.80/x
  3. Step 3: Cross multiply
    220,443.12x = 330,613.92 × 108,010.80
  4. Step 4: Simplify right side
    220,443.12x = 35,709,873,990.34
  5. Step 5: Solve for x
    x = 35,709,873,990.34/220,443.12
  6. Step 6: Final answer
    x = 161,991.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.