Home / 168,115.08-231,995.80-91,634.88

Finding the Fourth Proportional to 168,115.08, 231,995.80 and 91,634.88

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Solution

The fourth proportional to 168,115.08, 231,995.80 and 91,634.88 is: 126,454.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,115.08 : 231,995.80 = 91,634.88 : x
  2. Step 2: Convert to fraction form
    168,115.08/231,995.80 = 91,634.88/x
  3. Step 3: Cross multiply
    168,115.08x = 231,995.80 × 91,634.88
  4. Step 4: Simplify right side
    168,115.08x = 21,258,907,293.50
  5. Step 5: Solve for x
    x = 21,258,907,293.50/168,115.08
  6. Step 6: Final answer
    x = 126,454.49

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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.