Home / 198,918.56-274,540.92-127,295.12

Finding the Fourth Proportional to 198,918.56, 274,540.92 and 127,295.12

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Solution

The fourth proportional to 198,918.56, 274,540.92 and 127,295.12 is: 175,688.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,918.56 : 274,540.92 = 127,295.12 : x
  2. Step 2: Convert to fraction form
    198,918.56/274,540.92 = 127,295.12/x
  3. Step 3: Cross multiply
    198,918.56x = 274,540.92 × 127,295.12
  4. Step 4: Simplify right side
    198,918.56x = 34,947,719,356.31
  5. Step 5: Solve for x
    x = 34,947,719,356.31/198,918.56
  6. Step 6: Final answer
    x = 175,688.58

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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.