Home / 143,942.82-198,641.07-80,279.25

Finding the Fourth Proportional to 143,942.82, 198,641.07 and 80,279.25

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Solution

The fourth proportional to 143,942.82, 198,641.07 and 80,279.25 is: 110,785.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,942.82 : 198,641.07 = 80,279.25 : x
  2. Step 2: Convert to fraction form
    143,942.82/198,641.07 = 80,279.25/x
  3. Step 3: Cross multiply
    143,942.82x = 198,641.07 × 80,279.25
  4. Step 4: Simplify right side
    143,942.82x = 15,946,756,118.80
  5. Step 5: Solve for x
    x = 15,946,756,118.80/143,942.82
  6. Step 6: Final answer
    x = 110,785.35

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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.