Home / 126,890.28-175,029.36-81,627.26

Finding the Fourth Proportional to 126,890.28, 175,029.36 and 81,627.26

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Solution

The fourth proportional to 126,890.28, 175,029.36 and 81,627.26 is: 112,594.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,890.28 : 175,029.36 = 81,627.26 : x
  2. Step 2: Convert to fraction form
    126,890.28/175,029.36 = 81,627.26/x
  3. Step 3: Cross multiply
    126,890.28x = 175,029.36 × 81,627.26
  4. Step 4: Simplify right side
    126,890.28x = 14,287,167,076.35
  5. Step 5: Solve for x
    x = 14,287,167,076.35/126,890.28
  6. Step 6: Final answer
    x = 112,594.65

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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.