Home / 143,960.52-198,680.94-80,320.44

Finding the Fourth Proportional to 143,960.52, 198,680.94 and 80,320.44

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Solution

The fourth proportional to 143,960.52, 198,680.94 and 80,320.44 is: 110,850.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,960.52 : 198,680.94 = 80,320.44 : x
  2. Step 2: Convert to fraction form
    143,960.52/198,680.94 = 80,320.44/x
  3. Step 3: Cross multiply
    143,960.52x = 198,680.94 × 80,320.44
  4. Step 4: Simplify right side
    143,960.52x = 15,958,140,520.41
  5. Step 5: Solve for x
    x = 15,958,140,520.41/143,960.52
  6. Step 6: Final answer
    x = 110,850.81

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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.