Home / 126,760.78-175,048.41-81,517.33

Finding the Fourth Proportional to 126,760.78, 175,048.41 and 81,517.33

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Solution

The fourth proportional to 126,760.78, 175,048.41 and 81,517.33 is: 112,570.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,760.78 : 175,048.41 = 81,517.33 : x
  2. Step 2: Convert to fraction form
    126,760.78/175,048.41 = 81,517.33/x
  3. Step 3: Cross multiply
    126,760.78x = 175,048.41 × 81,517.33
  4. Step 4: Simplify right side
    126,760.78x = 14,269,477,721.12
  5. Step 5: Solve for x
    x = 14,269,477,721.12/126,760.78
  6. Step 6: Final answer
    x = 112,570.14

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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.