Home / 198,793.79-274,329.18-108,147.43

Finding the Fourth Proportional to 198,793.79, 274,329.18 and 108,147.43

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Solution

The fourth proportional to 198,793.79, 274,329.18 and 108,147.43 is: 149,240.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,793.79 : 274,329.18 = 108,147.43 : x
  2. Step 2: Convert to fraction form
    198,793.79/274,329.18 = 108,147.43/x
  3. Step 3: Cross multiply
    198,793.79x = 274,329.18 × 108,147.43
  4. Step 4: Simplify right side
    198,793.79x = 29,667,995,791.01
  5. Step 5: Solve for x
    x = 29,667,995,791.01/198,793.79
  6. Step 6: Final answer
    x = 149,240.05

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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.