Home / 225,579.57-311,279.11-130,067.81

Finding the Fourth Proportional to 225,579.57, 311,279.11 and 130,067.81

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Solution

The fourth proportional to 225,579.57, 311,279.11 and 130,067.81 is: 179,481.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,579.57 : 311,279.11 = 130,067.81 : x
  2. Step 2: Convert to fraction form
    225,579.57/311,279.11 = 130,067.81/x
  3. Step 3: Cross multiply
    225,579.57x = 311,279.11 × 130,067.81
  4. Step 4: Simplify right side
    225,579.57x = 40,487,392,136.45
  5. Step 5: Solve for x
    x = 40,487,392,136.45/225,579.57
  6. Step 6: Final answer
    x = 179,481.64

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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.