Home / 143,909.76-198,594.96-80,245.92

Finding the Fourth Proportional to 143,909.76, 198,594.96 and 80,245.92

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Solution

The fourth proportional to 143,909.76, 198,594.96 and 80,245.92 is: 110,739.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,909.76 : 198,594.96 = 80,245.92 : x
  2. Step 2: Convert to fraction form
    143,909.76/198,594.96 = 80,245.92/x
  3. Step 3: Cross multiply
    143,909.76x = 198,594.96 × 80,245.92
  4. Step 4: Simplify right side
    143,909.76x = 15,936,435,272.56
  5. Step 5: Solve for x
    x = 15,936,435,272.56/143,909.76
  6. Step 6: Final answer
    x = 110,739.09

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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.