Home / 198,023.20-273,286.50-113,138.44

Finding the Fourth Proportional to 198,023.20, 273,286.50 and 113,138.44

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Solution

The fourth proportional to 198,023.20, 273,286.50 and 113,138.44 is: 156,139.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,023.20 : 273,286.50 = 113,138.44 : x
  2. Step 2: Convert to fraction form
    198,023.20/273,286.50 = 113,138.44/x
  3. Step 3: Cross multiply
    198,023.20x = 273,286.50 × 113,138.44
  4. Step 4: Simplify right side
    198,023.20x = 30,919,208,283.06
  5. Step 5: Solve for x
    x = 30,919,208,283.06/198,023.20
  6. Step 6: Final answer
    x = 156,139.32

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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.