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Finding the Fourth Proportional to 144,080.82, 198,833.72 and 80,423.46

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Solution

The fourth proportional to 144,080.82, 198,833.72 and 80,423.46 is: 110,985.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,080.82 : 198,833.72 = 80,423.46 : x
  2. Step 2: Convert to fraction form
    144,080.82/198,833.72 = 80,423.46/x
  3. Step 3: Cross multiply
    144,080.82x = 198,833.72 × 80,423.46
  4. Step 4: Simplify right side
    144,080.82x = 15,990,895,324.95
  5. Step 5: Solve for x
    x = 15,990,895,324.95/144,080.82
  6. Step 6: Final answer
    x = 110,985.59

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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.