Home / 198,630.38-274,132.76-118,057.11

Finding the Fourth Proportional to 198,630.38, 274,132.76 and 118,057.11

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Solution

The fourth proportional to 198,630.38, 274,132.76 and 118,057.11 is: 162,932.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,630.38 : 274,132.76 = 118,057.11 : x
  2. Step 2: Convert to fraction form
    198,630.38/274,132.76 = 118,057.11/x
  3. Step 3: Cross multiply
    198,630.38x = 274,132.76 × 118,057.11
  4. Step 4: Simplify right side
    198,630.38x = 32,363,320,811.64
  5. Step 5: Solve for x
    x = 32,363,320,811.64/198,630.38
  6. Step 6: Final answer
    x = 162,932.39

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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.