Home / 198,896.40-274,505.96-111,691.29

Finding the Fourth Proportional to 198,896.40, 274,505.96 and 111,691.29

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Solution

The fourth proportional to 198,896.40, 274,505.96 and 111,691.29 is: 154,150.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,896.40 : 274,505.96 = 111,691.29 : x
  2. Step 2: Convert to fraction form
    198,896.40/274,505.96 = 111,691.29/x
  3. Step 3: Cross multiply
    198,896.40x = 274,505.96 × 111,691.29
  4. Step 4: Simplify right side
    198,896.40x = 30,659,924,226.63
  5. Step 5: Solve for x
    x = 30,659,924,226.63/198,896.40
  6. Step 6: Final answer
    x = 154,150.22

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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.