Home / 198,930.57-274,527.69-108,289.14

Finding the Fourth Proportional to 198,930.57, 274,527.69 and 108,289.14

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Solution

The fourth proportional to 198,930.57, 274,527.69 and 108,289.14 is: 149,440.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,930.57 : 274,527.69 = 108,289.14 : x
  2. Step 2: Convert to fraction form
    198,930.57/274,527.69 = 108,289.14/x
  3. Step 3: Cross multiply
    198,930.57x = 274,527.69 × 108,289.14
  4. Step 4: Simplify right side
    198,930.57x = 29,728,367,456.29
  5. Step 5: Solve for x
    x = 29,728,367,456.29/198,930.57
  6. Step 6: Final answer
    x = 149,440.92

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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.