Home / 189,540.38-261,579.50-108,993.18

Finding the Fourth Proportional to 189,540.38, 261,579.50 and 108,993.18

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Solution

The fourth proportional to 189,540.38, 261,579.50 and 108,993.18 is: 150,418.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,540.38 : 261,579.50 = 108,993.18 : x
  2. Step 2: Convert to fraction form
    189,540.38/261,579.50 = 108,993.18/x
  3. Step 3: Cross multiply
    189,540.38x = 261,579.50 × 108,993.18
  4. Step 4: Simplify right side
    189,540.38x = 28,510,381,527.81
  5. Step 5: Solve for x
    x = 28,510,381,527.81/189,540.38
  6. Step 6: Final answer
    x = 150,418.51

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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.