Home / 143,948.13-198,648.41-80,285.97

Finding the Fourth Proportional to 143,948.13, 198,648.41 and 80,285.97

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Solution

The fourth proportional to 143,948.13, 198,648.41 and 80,285.97 is: 110,794.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,948.13 : 198,648.41 = 80,285.97 : x
  2. Step 2: Convert to fraction form
    143,948.13/198,648.41 = 80,285.97/x
  3. Step 3: Cross multiply
    143,948.13x = 198,648.41 × 80,285.97
  4. Step 4: Simplify right side
    143,948.13x = 15,948,680,285.81
  5. Step 5: Solve for x
    x = 15,948,680,285.81/143,948.13
  6. Step 6: Final answer
    x = 110,794.63

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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.