Home / 143,969.20-198,677.36-80,306.96

Finding the Fourth Proportional to 143,969.20, 198,677.36 and 80,306.96

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Solution

The fourth proportional to 143,969.20, 198,677.36 and 80,306.96 is: 110,823.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,969.20 : 198,677.36 = 80,306.96 : x
  2. Step 2: Convert to fraction form
    143,969.20/198,677.36 = 80,306.96/x
  3. Step 3: Cross multiply
    143,969.20x = 198,677.36 × 80,306.96
  4. Step 4: Simplify right side
    143,969.20x = 15,955,174,802.43
  5. Step 5: Solve for x
    x = 15,955,174,802.43/143,969.20
  6. Step 6: Final answer
    x = 110,823.53

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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.