Home / 126,694.76-190,107.72-91,921.44

Finding the Fourth Proportional to 126,694.76, 190,107.72 and 91,921.44

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Solution

The fourth proportional to 126,694.76, 190,107.72 and 91,921.44 is: 137,929.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,694.76 : 190,107.72 = 91,921.44 : x
  2. Step 2: Convert to fraction form
    126,694.76/190,107.72 = 91,921.44/x
  3. Step 3: Cross multiply
    126,694.76x = 190,107.72 × 91,921.44
  4. Step 4: Simplify right side
    126,694.76x = 17,474,975,377.52
  5. Step 5: Solve for x
    x = 17,474,975,377.52/126,694.76
  6. Step 6: Final answer
    x = 137,929.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.