Home / 200,067.24-276,081.48-109,405.20

Finding the Fourth Proportional to 200,067.24, 276,081.48 and 109,405.20

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Solution

The fourth proportional to 200,067.24, 276,081.48 and 109,405.20 is: 150,972.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,067.24 : 276,081.48 = 109,405.20 : x
  2. Step 2: Convert to fraction form
    200,067.24/276,081.48 = 109,405.20/x
  3. Step 3: Cross multiply
    200,067.24x = 276,081.48 × 109,405.20
  4. Step 4: Simplify right side
    200,067.24x = 30,204,749,535.70
  5. Step 5: Solve for x
    x = 30,204,749,535.70/200,067.24
  6. Step 6: Final answer
    x = 150,972.99

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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.