Home / 172,208.25-258,067.03-126,873.06

Finding the Fourth Proportional to 172,208.25, 258,067.03 and 126,873.06

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Solution

The fourth proportional to 172,208.25, 258,067.03 and 126,873.06 is: 190,128.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,208.25 : 258,067.03 = 126,873.06 : x
  2. Step 2: Convert to fraction form
    172,208.25/258,067.03 = 126,873.06/x
  3. Step 3: Cross multiply
    172,208.25x = 258,067.03 × 126,873.06
  4. Step 4: Simplify right side
    172,208.25x = 32,741,751,856.51
  5. Step 5: Solve for x
    x = 32,741,751,856.51/172,208.25
  6. Step 6: Final answer
    x = 190,128.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.