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Finding the Fourth Proportional to 140,450.52, 193,821.90 and 80,018.52

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Solution

The fourth proportional to 140,450.52, 193,821.90 and 80,018.52 is: 110,425.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,450.52 : 193,821.90 = 80,018.52 : x
  2. Step 2: Convert to fraction form
    140,450.52/193,821.90 = 80,018.52/x
  3. Step 3: Cross multiply
    140,450.52x = 193,821.90 × 80,018.52
  4. Step 4: Simplify right side
    140,450.52x = 15,509,341,581.59
  5. Step 5: Solve for x
    x = 15,509,341,581.59/140,450.52
  6. Step 6: Final answer
    x = 110,425.66

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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.