Home / 172,025.04-258,067.82-78,540.24

Finding the Fourth Proportional to 172,025.04, 258,067.82 and 78,540.24

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Solution

The fourth proportional to 172,025.04, 258,067.82 and 78,540.24 is: 117,824.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,025.04 : 258,067.82 = 78,540.24 : x
  2. Step 2: Convert to fraction form
    172,025.04/258,067.82 = 78,540.24/x
  3. Step 3: Cross multiply
    172,025.04x = 258,067.82 × 78,540.24
  4. Step 4: Simplify right side
    172,025.04x = 20,268,708,519.08
  5. Step 5: Solve for x
    x = 20,268,708,519.08/172,025.04
  6. Step 6: Final answer
    x = 117,824.18

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1.5x scale

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.