Home / 147,310.75-221,062.97-80,797.50

Finding the Fourth Proportional to 147,310.75, 221,062.97 and 80,797.50

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Solution

The fourth proportional to 147,310.75, 221,062.97 and 80,797.50 is: 121,249.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,310.75 : 221,062.97 = 80,797.50 : x
  2. Step 2: Convert to fraction form
    147,310.75/221,062.97 = 80,797.50/x
  3. Step 3: Cross multiply
    147,310.75x = 221,062.97 × 80,797.50
  4. Step 4: Simplify right side
    147,310.75x = 17,861,335,520.57
  5. Step 5: Solve for x
    x = 17,861,335,520.57/147,310.75
  6. Step 6: Final answer
    x = 121,249.37

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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.