Home / 198,714.17-274,084.55-122,132.72

Finding the Fourth Proportional to 198,714.17, 274,084.55 and 122,132.72

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Solution

The fourth proportional to 198,714.17, 274,084.55 and 122,132.72 is: 168,456.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,714.17 : 274,084.55 = 122,132.72 : x
  2. Step 2: Convert to fraction form
    198,714.17/274,084.55 = 122,132.72/x
  3. Step 3: Cross multiply
    198,714.17x = 274,084.55 × 122,132.72
  4. Step 4: Simplify right side
    198,714.17x = 33,474,690,990.81
  5. Step 5: Solve for x
    x = 33,474,690,990.81/198,714.17
  6. Step 6: Final answer
    x = 168,456.49

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1.5x scale

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.