Home / 185,080.60-255,410.91-100,197.64

Finding the Fourth Proportional to 185,080.60, 255,410.91 and 100,197.64

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Solution

The fourth proportional to 185,080.60, 255,410.91 and 100,197.64 is: 138,272.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,080.60 : 255,410.91 = 100,197.64 : x
  2. Step 2: Convert to fraction form
    185,080.60/255,410.91 = 100,197.64/x
  3. Step 3: Cross multiply
    185,080.60x = 255,410.91 × 100,197.64
  4. Step 4: Simplify right side
    185,080.60x = 25,591,570,412.25
  5. Step 5: Solve for x
    x = 25,591,570,412.25/185,080.60
  6. Step 6: Final answer
    x = 138,272.57

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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.