Home / 198,917.28-274,541.43-127,294.85

Finding the Fourth Proportional to 198,917.28, 274,541.43 and 127,294.85

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Solution

The fourth proportional to 198,917.28, 274,541.43 and 127,294.85 is: 175,689.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,917.28 : 274,541.43 = 127,294.85 : x
  2. Step 2: Convert to fraction form
    198,917.28/274,541.43 = 127,294.85/x
  3. Step 3: Cross multiply
    198,917.28x = 274,541.43 × 127,294.85
  4. Step 4: Simplify right side
    198,917.28x = 34,947,708,777.93
  5. Step 5: Solve for x
    x = 34,947,708,777.93/198,917.28
  6. Step 6: Final answer
    x = 175,689.66

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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.