Home / 225,844.72-311,671.20-123,874.36

Finding the Fourth Proportional to 225,844.72, 311,671.20 and 123,874.36

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Solution

The fourth proportional to 225,844.72, 311,671.20 and 123,874.36 is: 170,949.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,844.72 : 311,671.20 = 123,874.36 : x
  2. Step 2: Convert to fraction form
    225,844.72/311,671.20 = 123,874.36/x
  3. Step 3: Cross multiply
    225,844.72x = 311,671.20 × 123,874.36
  4. Step 4: Simplify right side
    225,844.72x = 38,608,070,430.43
  5. Step 5: Solve for x
    x = 38,608,070,430.43/225,844.72
  6. Step 6: Final answer
    x = 170,949.63

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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.