Home / 198,559.62-297,987.09-80,231.97

Finding the Fourth Proportional to 198,559.62, 297,987.09 and 80,231.97

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Solution

The fourth proportional to 198,559.62, 297,987.09 and 80,231.97 is: 120,407.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,559.62 : 297,987.09 = 80,231.97 : x
  2. Step 2: Convert to fraction form
    198,559.62/297,987.09 = 80,231.97/x
  3. Step 3: Cross multiply
    198,559.62x = 297,987.09 × 80,231.97
  4. Step 4: Simplify right side
    198,559.62x = 23,908,091,265.27
  5. Step 5: Solve for x
    x = 23,908,091,265.27/198,559.62
  6. Step 6: Final answer
    x = 120,407.62

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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.