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Finding the Fourth Proportional to 144,278.88, 199,101.13 and 80,617.20

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Solution

The fourth proportional to 144,278.88, 199,101.13 and 80,617.20 is: 111,249.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,278.88 : 199,101.13 = 80,617.20 : x
  2. Step 2: Convert to fraction form
    144,278.88/199,101.13 = 80,617.20/x
  3. Step 3: Cross multiply
    144,278.88x = 199,101.13 × 80,617.20
  4. Step 4: Simplify right side
    144,278.88x = 16,050,975,617.44
  5. Step 5: Solve for x
    x = 16,050,975,617.44/144,278.88
  6. Step 6: Final answer
    x = 111,249.65

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1.5x scale

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.