Home / 198,001.80-296,565.30-79,612.20

Finding the Fourth Proportional to 198,001.80, 296,565.30 and 79,612.20

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Solution

The fourth proportional to 198,001.80, 296,565.30 and 79,612.20 is: 119,242.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,001.80 : 296,565.30 = 79,612.20 : x
  2. Step 2: Convert to fraction form
    198,001.80/296,565.30 = 79,612.20/x
  3. Step 3: Cross multiply
    198,001.80x = 296,565.30 × 79,612.20
  4. Step 4: Simplify right side
    198,001.80x = 23,610,215,976.66
  5. Step 5: Solve for x
    x = 23,610,215,976.66/198,001.80
  6. Step 6: Final answer
    x = 119,242.43

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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.