Home / 126,540.56-174,625.92-76,249.28

Finding the Fourth Proportional to 126,540.56, 174,625.92 and 76,249.28

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Solution

The fourth proportional to 126,540.56, 174,625.92 and 76,249.28 is: 105,223.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,540.56 : 174,625.92 = 76,249.28 : x
  2. Step 2: Convert to fraction form
    126,540.56/174,625.92 = 76,249.28/x
  3. Step 3: Cross multiply
    126,540.56x = 174,625.92 × 76,249.28
  4. Step 4: Simplify right side
    126,540.56x = 13,315,100,669.34
  5. Step 5: Solve for x
    x = 13,315,100,669.34/126,540.56
  6. Step 6: Final answer
    x = 105,223.97

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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.