Home / 143,720.17-198,320.97-80,056.60

Finding the Fourth Proportional to 143,720.17, 198,320.97 and 80,056.60

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Solution

The fourth proportional to 143,720.17, 198,320.97 and 80,056.60 is: 110,470.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,720.17 : 198,320.97 = 80,056.60 : x
  2. Step 2: Convert to fraction form
    143,720.17/198,320.97 = 80,056.60/x
  3. Step 3: Cross multiply
    143,720.17x = 198,320.97 × 80,056.60
  4. Step 4: Simplify right side
    143,720.17x = 15,876,902,566.90
  5. Step 5: Solve for x
    x = 15,876,902,566.90/143,720.17
  6. Step 6: Final answer
    x = 110,470.94

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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.