Home / 185,118.75-255,464.01-100,235.88

Finding the Fourth Proportional to 185,118.75, 255,464.01 and 100,235.88

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Solution

The fourth proportional to 185,118.75, 255,464.01 and 100,235.88 is: 138,325.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,118.75 : 255,464.01 = 100,235.88 : x
  2. Step 2: Convert to fraction form
    185,118.75/255,464.01 = 100,235.88/x
  3. Step 3: Cross multiply
    185,118.75x = 255,464.01 × 100,235.88
  4. Step 4: Simplify right side
    185,118.75x = 25,606,659,850.68
  5. Step 5: Solve for x
    x = 25,606,659,850.68/185,118.75
  6. Step 6: Final answer
    x = 138,325.59

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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.