Home / 143,863.06-198,531.03-80,204.96

Finding the Fourth Proportional to 143,863.06, 198,531.03 and 80,204.96

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Solution

The fourth proportional to 143,863.06, 198,531.03 and 80,204.96 is: 110,682.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,863.06 : 198,531.03 = 80,204.96 : x
  2. Step 2: Convert to fraction form
    143,863.06/198,531.03 = 80,204.96/x
  3. Step 3: Cross multiply
    143,863.06x = 198,531.03 × 80,204.96
  4. Step 4: Simplify right side
    143,863.06x = 15,923,173,319.91
  5. Step 5: Solve for x
    x = 15,923,173,319.91/143,863.06
  6. Step 6: Final answer
    x = 110,682.85

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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.