Home / 170,200.80-255,260.16-75,378.54

Finding the Fourth Proportional to 170,200.80, 255,260.16 and 75,378.54

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Solution

The fourth proportional to 170,200.80, 255,260.16 and 75,378.54 is: 113,049.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,200.80 : 255,260.16 = 75,378.54 : x
  2. Step 2: Convert to fraction form
    170,200.80/255,260.16 = 75,378.54/x
  3. Step 3: Cross multiply
    170,200.80x = 255,260.16 × 75,378.54
  4. Step 4: Simplify right side
    170,200.80x = 19,241,138,180.97
  5. Step 5: Solve for x
    x = 19,241,138,180.97/170,200.80
  6. Step 6: Final answer
    x = 113,049.63

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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.