Home / 204,972.20-307,535.10-80,402.60

Finding the Fourth Proportional to 204,972.20, 307,535.10 and 80,402.60

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Solution

The fourth proportional to 204,972.20, 307,535.10 and 80,402.60 is: 120,634.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,972.20 : 307,535.10 = 80,402.60 : x
  2. Step 2: Convert to fraction form
    204,972.20/307,535.10 = 80,402.60/x
  3. Step 3: Cross multiply
    204,972.20x = 307,535.10 × 80,402.60
  4. Step 4: Simplify right side
    204,972.20x = 24,726,621,631.26
  5. Step 5: Solve for x
    x = 24,726,621,631.26/204,972.20
  6. Step 6: Final answer
    x = 120,634.03

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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.