Home / 225,516.60-311,213.03-123,545.75

Finding the Fourth Proportional to 225,516.60, 311,213.03 and 123,545.75

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Solution

The fourth proportional to 225,516.60, 311,213.03 and 123,545.75 is: 170,493.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,516.60 : 311,213.03 = 123,545.75 : x
  2. Step 2: Convert to fraction form
    225,516.60/311,213.03 = 123,545.75/x
  3. Step 3: Cross multiply
    225,516.60x = 311,213.03 × 123,545.75
  4. Step 4: Simplify right side
    225,516.60x = 38,449,045,027.33
  5. Step 5: Solve for x
    x = 38,449,045,027.33/225,516.60
  6. Step 6: Final answer
    x = 170,493.19

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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.