Home / 127,137-175,481.30-86,867.04

Finding the Fourth Proportional to 127,137, 175,481.30 and 86,867.04

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Solution

The fourth proportional to 127,137, 175,481.30 and 86,867.04 is: 119,898.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,137 : 175,481.30 = 86,867.04 : x
  2. Step 2: Convert to fraction form
    127,137/175,481.30 = 86,867.04/x
  3. Step 3: Cross multiply
    127,137x = 175,481.30 × 86,867.04
  4. Step 4: Simplify right side
    127,137x = 15,243,541,106.35
  5. Step 5: Solve for x
    x = 15,243,541,106.35/127,137
  6. Step 6: Final answer
    x = 119,898.54

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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.