Home / 127,315.43-175,629.41-86,481.66

Finding the Fourth Proportional to 127,315.43, 175,629.41 and 86,481.66

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Solution

The fourth proportional to 127,315.43, 175,629.41 and 86,481.66 is: 119,299.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,315.43 : 175,629.41 = 86,481.66 : x
  2. Step 2: Convert to fraction form
    127,315.43/175,629.41 = 86,481.66/x
  3. Step 3: Cross multiply
    127,315.43x = 175,629.41 × 86,481.66
  4. Step 4: Simplify right side
    127,315.43x = 15,188,722,921.62
  5. Step 5: Solve for x
    x = 15,188,722,921.62/127,315.43
  6. Step 6: Final answer
    x = 119,299.94

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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.