Home / 143,625.28-198,198.24-79,960.96

Finding the Fourth Proportional to 143,625.28, 198,198.24 and 79,960.96

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Solution

The fourth proportional to 143,625.28, 198,198.24 and 79,960.96 is: 110,343.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,625.28 : 198,198.24 = 79,960.96 : x
  2. Step 2: Convert to fraction form
    143,625.28/198,198.24 = 79,960.96/x
  3. Step 3: Cross multiply
    143,625.28x = 198,198.24 × 79,960.96
  4. Step 4: Simplify right side
    143,625.28x = 15,848,121,540.71
  5. Step 5: Solve for x
    x = 15,848,121,540.71/143,625.28
  6. Step 6: Final answer
    x = 110,343.54

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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.