Home / 143,863.83-198,538.25-80,201.61

Finding the Fourth Proportional to 143,863.83, 198,538.25 and 80,201.61

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Solution

The fourth proportional to 143,863.83, 198,538.25 and 80,201.61 is: 110,681.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,863.83 : 198,538.25 = 80,201.61 : x
  2. Step 2: Convert to fraction form
    143,863.83/198,538.25 = 80,201.61/x
  3. Step 3: Cross multiply
    143,863.83x = 198,538.25 × 80,201.61
  4. Step 4: Simplify right side
    143,863.83x = 15,923,086,895.57
  5. Step 5: Solve for x
    x = 15,923,086,895.57/143,863.83
  6. Step 6: Final answer
    x = 110,681.66

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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.