Home / 126,774.70-175,067.60-81,531.23

Finding the Fourth Proportional to 126,774.70, 175,067.60 and 81,531.23

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Solution

The fourth proportional to 126,774.70, 175,067.60 and 81,531.23 is: 112,589.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,774.70 : 175,067.60 = 81,531.23 : x
  2. Step 2: Convert to fraction form
    126,774.70/175,067.60 = 81,531.23/x
  3. Step 3: Cross multiply
    126,774.70x = 175,067.60 × 81,531.23
  4. Step 4: Simplify right side
    126,774.70x = 14,273,475,478.15
  5. Step 5: Solve for x
    x = 14,273,475,478.15/126,774.70
  6. Step 6: Final answer
    x = 112,589.31

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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.