Home / 144,042.71-198,755.17-80,380.35

Finding the Fourth Proportional to 144,042.71, 198,755.17 and 80,380.35

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Solution

The fourth proportional to 144,042.71, 198,755.17 and 80,380.35 is: 110,911.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,042.71 : 198,755.17 = 80,380.35 : x
  2. Step 2: Convert to fraction form
    144,042.71/198,755.17 = 80,380.35/x
  3. Step 3: Cross multiply
    144,042.71x = 198,755.17 × 80,380.35
  4. Step 4: Simplify right side
    144,042.71x = 15,976,009,927.96
  5. Step 5: Solve for x
    x = 15,976,009,927.96/144,042.71
  6. Step 6: Final answer
    x = 110,911.62

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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.