Home / 198,691.70-274,201.75-113,825.16

Finding the Fourth Proportional to 198,691.70, 274,201.75 and 113,825.16

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Solution

The fourth proportional to 198,691.70, 274,201.75 and 113,825.16 is: 157,082.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,691.70 : 274,201.75 = 113,825.16 : x
  2. Step 2: Convert to fraction form
    198,691.70/274,201.75 = 113,825.16/x
  3. Step 3: Cross multiply
    198,691.70x = 274,201.75 × 113,825.16
  4. Step 4: Simplify right side
    198,691.70x = 31,211,057,781.47
  5. Step 5: Solve for x
    x = 31,211,057,781.47/198,691.70
  6. Step 6: Final answer
    x = 157,082.85

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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.