Home / 198,089.16-273,381.72-113,189.76

Finding the Fourth Proportional to 198,089.16, 273,381.72 and 113,189.76

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Solution

The fourth proportional to 198,089.16, 273,381.72 and 113,189.76 is: 156,212.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,089.16 : 273,381.72 = 113,189.76 : x
  2. Step 2: Convert to fraction form
    198,089.16/273,381.72 = 113,189.76/x
  3. Step 3: Cross multiply
    198,089.16x = 273,381.72 × 113,189.76
  4. Step 4: Simplify right side
    198,089.16x = 30,944,011,275.19
  5. Step 5: Solve for x
    x = 30,944,011,275.19/198,089.16
  6. Step 6: Final answer
    x = 156,212.54

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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.