Home / 185,255.20-255,650.16-100,367.20

Finding the Fourth Proportional to 185,255.20, 255,650.16 and 100,367.20

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Solution

The fourth proportional to 185,255.20, 255,650.16 and 100,367.20 is: 138,505.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,255.20 : 255,650.16 = 100,367.20 : x
  2. Step 2: Convert to fraction form
    185,255.20/255,650.16 = 100,367.20/x
  3. Step 3: Cross multiply
    185,255.20x = 255,650.16 × 100,367.20
  4. Step 4: Simplify right side
    185,255.20x = 25,658,890,738.75
  5. Step 5: Solve for x
    x = 25,658,890,738.75/185,255.20
  6. Step 6: Final answer
    x = 138,505.64

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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.