Home / 198,861.62-274,426.18-109,437.62

Finding the Fourth Proportional to 198,861.62, 274,426.18 and 109,437.62

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Solution

The fourth proportional to 198,861.62, 274,426.18 and 109,437.62 is: 151,022.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,861.62 : 274,426.18 = 109,437.62 : x
  2. Step 2: Convert to fraction form
    198,861.62/274,426.18 = 109,437.62/x
  3. Step 3: Cross multiply
    198,861.62x = 274,426.18 × 109,437.62
  4. Step 4: Simplify right side
    198,861.62x = 30,032,546,359.17
  5. Step 5: Solve for x
    x = 30,032,546,359.17/198,861.62
  6. Step 6: Final answer
    x = 151,022.34

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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.