Home / 198,023.22-273,286.50-113,138.46

Finding the Fourth Proportional to 198,023.22, 273,286.50 and 113,138.46

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Solution

The fourth proportional to 198,023.22, 273,286.50 and 113,138.46 is: 156,139.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,023.22 : 273,286.50 = 113,138.46 : x
  2. Step 2: Convert to fraction form
    198,023.22/273,286.50 = 113,138.46/x
  3. Step 3: Cross multiply
    198,023.22x = 273,286.50 × 113,138.46
  4. Step 4: Simplify right side
    198,023.22x = 30,919,213,748.79
  5. Step 5: Solve for x
    x = 30,919,213,748.79/198,023.22
  6. Step 6: Final answer
    x = 156,139.33

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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.