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Finding the Fourth Proportional to 95,471.20, 143,359.80 and 75,912.40

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Solution

The fourth proportional to 95,471.20, 143,359.80 and 75,912.40 is: 113,990.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,471.20 : 143,359.80 = 75,912.40 : x
  2. Step 2: Convert to fraction form
    95,471.20/143,359.80 = 75,912.40/x
  3. Step 3: Cross multiply
    95,471.20x = 143,359.80 × 75,912.40
  4. Step 4: Simplify right side
    95,471.20x = 10,882,786,481.52
  5. Step 5: Solve for x
    x = 10,882,786,481.52/95,471.20
  6. Step 6: Final answer
    x = 113,990.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.