Home / 225,900.48-338,889.60-120,691.20

Finding the Fourth Proportional to 225,900.48, 338,889.60 and 120,691.20

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Solution

The fourth proportional to 225,900.48, 338,889.60 and 120,691.20 is: 181,057.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,900.48 : 338,889.60 = 120,691.20 : x
  2. Step 2: Convert to fraction form
    225,900.48/338,889.60 = 120,691.20/x
  3. Step 3: Cross multiply
    225,900.48x = 338,889.60 × 120,691.20
  4. Step 4: Simplify right side
    225,900.48x = 40,900,992,491.52
  5. Step 5: Solve for x
    x = 40,900,992,491.52/225,900.48
  6. Step 6: Final answer
    x = 181,057.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.