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Finding the Fourth Proportional to 144,664.56, 199,644.48 and 80,998.56

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Solution

The fourth proportional to 144,664.56, 199,644.48 and 80,998.56 is: 111,782.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,664.56 : 199,644.48 = 80,998.56 : x
  2. Step 2: Convert to fraction form
    144,664.56/199,644.48 = 80,998.56/x
  3. Step 3: Cross multiply
    144,664.56x = 199,644.48 × 80,998.56
  4. Step 4: Simplify right side
    144,664.56x = 16,170,915,391.95
  5. Step 5: Solve for x
    x = 16,170,915,391.95/144,664.56
  6. Step 6: Final answer
    x = 111,782.15

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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.