Home / 225,785.18-338,833.29-78,041.18

Finding the Fourth Proportional to 225,785.18, 338,833.29 and 78,041.18

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Solution

The fourth proportional to 225,785.18, 338,833.29 and 78,041.18 is: 117,115.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,785.18 : 338,833.29 = 78,041.18 : x
  2. Step 2: Convert to fraction form
    225,785.18/338,833.29 = 78,041.18/x
  3. Step 3: Cross multiply
    225,785.18x = 338,833.29 × 78,041.18
  4. Step 4: Simplify right side
    225,785.18x = 26,442,949,774.88
  5. Step 5: Solve for x
    x = 26,442,949,774.88/225,785.18
  6. Step 6: Final answer
    x = 117,115.52

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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.