Home / 185,121.44-255,469.41-100,240.32

Finding the Fourth Proportional to 185,121.44, 255,469.41 and 100,240.32

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Solution

The fourth proportional to 185,121.44, 255,469.41 and 100,240.32 is: 138,332.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,121.44 : 255,469.41 = 100,240.32 : x
  2. Step 2: Convert to fraction form
    185,121.44/255,469.41 = 100,240.32/x
  3. Step 3: Cross multiply
    185,121.44x = 255,469.41 × 100,240.32
  4. Step 4: Simplify right side
    185,121.44x = 25,608,335,408.61
  5. Step 5: Solve for x
    x = 25,608,335,408.61/185,121.44
  6. Step 6: Final answer
    x = 138,332.63

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1.5x scale

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.