Home / 143,821.32-198,380.78-95,422.20

Finding the Fourth Proportional to 143,821.32, 198,380.78 and 95,422.20

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Solution

The fourth proportional to 143,821.32, 198,380.78 and 95,422.20 is: 131,621.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,821.32 : 198,380.78 = 95,422.20 : x
  2. Step 2: Convert to fraction form
    143,821.32/198,380.78 = 95,422.20/x
  3. Step 3: Cross multiply
    143,821.32x = 198,380.78 × 95,422.20
  4. Step 4: Simplify right side
    143,821.32x = 18,929,930,465.32
  5. Step 5: Solve for x
    x = 18,929,930,465.32/143,821.32
  6. Step 6: Final answer
    x = 131,621.17

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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.