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Finding the Fourth Proportional to 144,327.88, 199,176.60 and 80,665.80

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Solution

The fourth proportional to 144,327.88, 199,176.60 and 80,665.80 is: 111,321.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,327.88 : 199,176.60 = 80,665.80 : x
  2. Step 2: Convert to fraction form
    144,327.88/199,176.60 = 80,665.80/x
  3. Step 3: Cross multiply
    144,327.88x = 199,176.60 × 80,665.80
  4. Step 4: Simplify right side
    144,327.88x = 16,066,739,780.28
  5. Step 5: Solve for x
    x = 16,066,739,780.28/144,327.88
  6. Step 6: Final answer
    x = 111,321.11

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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.