Home / 126,761.03-175,048.75-81,517.58

Finding the Fourth Proportional to 126,761.03, 175,048.75 and 81,517.58

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Solution

The fourth proportional to 126,761.03, 175,048.75 and 81,517.58 is: 112,570.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,761.03 : 175,048.75 = 81,517.58 : x
  2. Step 2: Convert to fraction form
    126,761.03/175,048.75 = 81,517.58/x
  3. Step 3: Cross multiply
    126,761.03x = 175,048.75 × 81,517.58
  4. Step 4: Simplify right side
    126,761.03x = 14,269,549,606.78
  5. Step 5: Solve for x
    x = 14,269,549,606.78/126,761.03
  6. Step 6: Final answer
    x = 112,570.48

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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.