Home / 198,992.12-274,614.35-108,351.90

Finding the Fourth Proportional to 198,992.12, 274,614.35 and 108,351.90

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Solution

The fourth proportional to 198,992.12, 274,614.35 and 108,351.90 is: 149,528.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,992.12 : 274,614.35 = 108,351.90 : x
  2. Step 2: Convert to fraction form
    198,992.12/274,614.35 = 108,351.90/x
  3. Step 3: Cross multiply
    198,992.12x = 274,614.35 × 108,351.90
  4. Step 4: Simplify right side
    198,992.12x = 29,754,986,048.01
  5. Step 5: Solve for x
    x = 29,754,986,048.01/198,992.12
  6. Step 6: Final answer
    x = 149,528.47

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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.