Home / 198,198.53-273,447.75-112,145.54

Finding the Fourth Proportional to 198,198.53, 273,447.75 and 112,145.54

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Solution

The fourth proportional to 198,198.53, 273,447.75 and 112,145.54 is: 154,723.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,198.53 : 273,447.75 = 112,145.54 : x
  2. Step 2: Convert to fraction form
    198,198.53/273,447.75 = 112,145.54/x
  3. Step 3: Cross multiply
    198,198.53x = 273,447.75 × 112,145.54
  4. Step 4: Simplify right side
    198,198.53x = 30,665,945,585.54
  5. Step 5: Solve for x
    x = 30,665,945,585.54/198,198.53
  6. Step 6: Final answer
    x = 154,723.38

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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.