Home / 126,959.19-175,120.36-81,565.58

Finding the Fourth Proportional to 126,959.19, 175,120.36 and 81,565.58

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Solution

The fourth proportional to 126,959.19, 175,120.36 and 81,565.58 is: 112,506.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,959.19 : 175,120.36 = 81,565.58 : x
  2. Step 2: Convert to fraction form
    126,959.19/175,120.36 = 81,565.58/x
  3. Step 3: Cross multiply
    126,959.19x = 175,120.36 × 81,565.58
  4. Step 4: Simplify right side
    126,959.19x = 14,283,793,733.21
  5. Step 5: Solve for x
    x = 14,283,793,733.21/126,959.19
  6. Step 6: Final answer
    x = 112,506.97

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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.