Home / 185,015.82-255,321.39-100,132.95

Finding the Fourth Proportional to 185,015.82, 255,321.39 and 100,132.95

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Solution

The fourth proportional to 185,015.82, 255,321.39 and 100,132.95 is: 138,183.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,015.82 : 255,321.39 = 100,132.95 : x
  2. Step 2: Convert to fraction form
    185,015.82/255,321.39 = 100,132.95/x
  3. Step 3: Cross multiply
    185,015.82x = 255,321.39 × 100,132.95
  4. Step 4: Simplify right side
    185,015.82x = 25,566,083,978.80
  5. Step 5: Solve for x
    x = 25,566,083,978.80/185,015.82
  6. Step 6: Final answer
    x = 138,183.23

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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.