Home / 143,976.59-198,673.91-80,318.49

Finding the Fourth Proportional to 143,976.59, 198,673.91 and 80,318.49

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Solution

The fourth proportional to 143,976.59, 198,673.91 and 80,318.49 is: 110,831.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,976.59 : 198,673.91 = 80,318.49 : x
  2. Step 2: Convert to fraction form
    143,976.59/198,673.91 = 80,318.49/x
  3. Step 3: Cross multiply
    143,976.59x = 198,673.91 × 80,318.49
  4. Step 4: Simplify right side
    143,976.59x = 15,957,188,059.96
  5. Step 5: Solve for x
    x = 15,957,188,059.96/143,976.59
  6. Step 6: Final answer
    x = 110,831.82

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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.