Home / 143,713.86-198,331.25-80,051.69

Finding the Fourth Proportional to 143,713.86, 198,331.25 and 80,051.69

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Solution

The fourth proportional to 143,713.86, 198,331.25 and 80,051.69 is: 110,474.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,713.86 : 198,331.25 = 80,051.69 : x
  2. Step 2: Convert to fraction form
    143,713.86/198,331.25 = 80,051.69/x
  3. Step 3: Cross multiply
    143,713.86x = 198,331.25 × 80,051.69
  4. Step 4: Simplify right side
    143,713.86x = 15,876,750,350.40
  5. Step 5: Solve for x
    x = 15,876,750,350.40/143,713.86
  6. Step 6: Final answer
    x = 110,474.73

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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.