Home / 198,016.20-273,237.18-113,138.76

Finding the Fourth Proportional to 198,016.20, 273,237.18 and 113,138.76

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Solution

The fourth proportional to 198,016.20, 273,237.18 and 113,138.76 is: 156,117.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,016.20 : 273,237.18 = 113,138.76 : x
  2. Step 2: Convert to fraction form
    198,016.20/273,237.18 = 113,138.76/x
  3. Step 3: Cross multiply
    198,016.20x = 273,237.18 × 113,138.76
  4. Step 4: Simplify right side
    198,016.20x = 30,913,715,731.10
  5. Step 5: Solve for x
    x = 30,913,715,731.10/198,016.20
  6. Step 6: Final answer
    x = 156,117.10

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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.