Home / 198,920.56-274,543.68-127,297.12

Finding the Fourth Proportional to 198,920.56, 274,543.68 and 127,297.12

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Solution

The fourth proportional to 198,920.56, 274,543.68 and 127,297.12 is: 175,691.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,920.56 : 274,543.68 = 127,297.12 : x
  2. Step 2: Convert to fraction form
    198,920.56/274,543.68 = 127,297.12/x
  3. Step 3: Cross multiply
    198,920.56x = 274,543.68 × 127,297.12
  4. Step 4: Simplify right side
    198,920.56x = 34,948,619,778.20
  5. Step 5: Solve for x
    x = 34,948,619,778.20/198,920.56
  6. Step 6: Final answer
    x = 175,691.34

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1.5x scale

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.