Home / 143,827.76-198,489.12-80,166.04

Finding the Fourth Proportional to 143,827.76, 198,489.12 and 80,166.04

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Solution

The fourth proportional to 143,827.76, 198,489.12 and 80,166.04 is: 110,632.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,827.76 : 198,489.12 = 80,166.04 : x
  2. Step 2: Convert to fraction form
    143,827.76/198,489.12 = 80,166.04/x
  3. Step 3: Cross multiply
    143,827.76x = 198,489.12 × 80,166.04
  4. Step 4: Simplify right side
    143,827.76x = 15,912,086,733.48
  5. Step 5: Solve for x
    x = 15,912,086,733.48/143,827.76
  6. Step 6: Final answer
    x = 110,632.93

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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.