Home / 204,742.76-307,140.06-80,067.56

Finding the Fourth Proportional to 204,742.76, 307,140.06 and 80,067.56

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Solution

The fourth proportional to 204,742.76, 307,140.06 and 80,067.56 is: 120,111.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,742.76 : 307,140.06 = 80,067.56 : x
  2. Step 2: Convert to fraction form
    204,742.76/307,140.06 = 80,067.56/x
  3. Step 3: Cross multiply
    204,742.76x = 307,140.06 × 80,067.56
  4. Step 4: Simplify right side
    204,742.76x = 24,591,955,182.45
  5. Step 5: Solve for x
    x = 24,591,955,182.45/204,742.76
  6. Step 6: Final answer
    x = 120,111.48

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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.