Home / 143,823.17-198,482.76-80,161.43

Finding the Fourth Proportional to 143,823.17, 198,482.76 and 80,161.43

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Solution

The fourth proportional to 143,823.17, 198,482.76 and 80,161.43 is: 110,626.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,823.17 : 198,482.76 = 80,161.43 : x
  2. Step 2: Convert to fraction form
    143,823.17/198,482.76 = 80,161.43/x
  3. Step 3: Cross multiply
    143,823.17x = 198,482.76 × 80,161.43
  4. Step 4: Simplify right side
    143,823.17x = 15,910,660,879.53
  5. Step 5: Solve for x
    x = 15,910,660,879.53/143,823.17
  6. Step 6: Final answer
    x = 110,626.55

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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.