Home / 185,081.60-255,412.29-100,198.64

Finding the Fourth Proportional to 185,081.60, 255,412.29 and 100,198.64

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Solution

The fourth proportional to 185,081.60, 255,412.29 and 100,198.64 is: 138,273.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,081.60 : 255,412.29 = 100,198.64 : x
  2. Step 2: Convert to fraction form
    185,081.60/255,412.29 = 100,198.64/x
  3. Step 3: Cross multiply
    185,081.60x = 255,412.29 × 100,198.64
  4. Step 4: Simplify right side
    185,081.60x = 25,591,964,097.29
  5. Step 5: Solve for x
    x = 25,591,964,097.29/185,081.60
  6. Step 6: Final answer
    x = 138,273.95

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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.