Home / 143,470.20-198,004.62-83,039.88

Finding the Fourth Proportional to 143,470.20, 198,004.62 and 83,039.88

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Solution

The fourth proportional to 143,470.20, 198,004.62 and 83,039.88 is: 114,604.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,470.20 : 198,004.62 = 83,039.88 : x
  2. Step 2: Convert to fraction form
    143,470.20/198,004.62 = 83,039.88/x
  3. Step 3: Cross multiply
    143,470.20x = 198,004.62 × 83,039.88
  4. Step 4: Simplify right side
    143,470.20x = 16,442,279,884.25
  5. Step 5: Solve for x
    x = 16,442,279,884.25/143,470.20
  6. Step 6: Final answer
    x = 114,604.15

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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.