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Finding the Fourth Proportional to 144,052.40, 198,772.40 and 80,377.84

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Solution

The fourth proportional to 144,052.40, 198,772.40 and 80,377.84 is: 110,910.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,052.40 : 198,772.40 = 80,377.84 : x
  2. Step 2: Convert to fraction form
    144,052.40/198,772.40 = 80,377.84/x
  3. Step 3: Cross multiply
    144,052.40x = 198,772.40 × 80,377.84
  4. Step 4: Simplify right side
    144,052.40x = 15,976,896,163.62
  5. Step 5: Solve for x
    x = 15,976,896,163.62/144,052.40
  6. Step 6: Final answer
    x = 110,910.31

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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.