Home / 198,618.03-297,833.13-72,170.15

Finding the Fourth Proportional to 198,618.03, 297,833.13 and 72,170.15

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Solution

The fourth proportional to 198,618.03, 297,833.13 and 72,170.15 is: 108,221.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,618.03 : 297,833.13 = 72,170.15 : x
  2. Step 2: Convert to fraction form
    198,618.03/297,833.13 = 72,170.15/x
  3. Step 3: Cross multiply
    198,618.03x = 297,833.13 × 72,170.15
  4. Step 4: Simplify right side
    198,618.03x = 21,494,660,177.90
  5. Step 5: Solve for x
    x = 21,494,660,177.90/198,618.03
  6. Step 6: Final answer
    x = 108,221.09

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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.