Home / 144,418.92-199,298.52-80,757.78

Finding the Fourth Proportional to 144,418.92, 199,298.52 and 80,757.78

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Solution

The fourth proportional to 144,418.92, 199,298.52 and 80,757.78 is: 111,445.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,418.92 : 199,298.52 = 80,757.78 : x
  2. Step 2: Convert to fraction form
    144,418.92/199,298.52 = 80,757.78/x
  3. Step 3: Cross multiply
    144,418.92x = 199,298.52 × 80,757.78
  4. Step 4: Simplify right side
    144,418.92x = 16,094,906,032.49
  5. Step 5: Solve for x
    x = 16,094,906,032.49/144,418.92
  6. Step 6: Final answer
    x = 111,445.97

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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.