Home / 143,945.99-198,645.73-80,287.88

Finding the Fourth Proportional to 143,945.99, 198,645.73 and 80,287.88

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Solution

The fourth proportional to 143,945.99, 198,645.73 and 80,287.88 is: 110,797.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,945.99 : 198,645.73 = 80,287.88 : x
  2. Step 2: Convert to fraction form
    143,945.99/198,645.73 = 80,287.88/x
  3. Step 3: Cross multiply
    143,945.99x = 198,645.73 × 80,287.88
  4. Step 4: Simplify right side
    143,945.99x = 15,948,844,532.75
  5. Step 5: Solve for x
    x = 15,948,844,532.75/143,945.99
  6. Step 6: Final answer
    x = 110,797.42

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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.