Home / 143,826.74-198,481.82-80,168.57

Finding the Fourth Proportional to 143,826.74, 198,481.82 and 80,168.57

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Solution

The fourth proportional to 143,826.74, 198,481.82 and 80,168.57 is: 110,633.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,826.74 : 198,481.82 = 80,168.57 : x
  2. Step 2: Convert to fraction form
    143,826.74/198,481.82 = 80,168.57/x
  3. Step 3: Cross multiply
    143,826.74x = 198,481.82 × 80,168.57
  4. Step 4: Simplify right side
    143,826.74x = 15,912,003,680.40
  5. Step 5: Solve for x
    x = 15,912,003,680.40/143,826.74
  6. Step 6: Final answer
    x = 110,633.14

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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.