Home / 127,456.16-190,789.68-108,560.48

Finding the Fourth Proportional to 127,456.16, 190,789.68 and 108,560.48

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Solution

The fourth proportional to 127,456.16, 190,789.68 and 108,560.48 is: 162,504.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,456.16 : 190,789.68 = 108,560.48 : x
  2. Step 2: Convert to fraction form
    127,456.16/190,789.68 = 108,560.48/x
  3. Step 3: Cross multiply
    127,456.16x = 190,789.68 × 108,560.48
  4. Step 4: Simplify right side
    127,456.16x = 20,712,219,239.85
  5. Step 5: Solve for x
    x = 20,712,219,239.85/127,456.16
  6. Step 6: Final answer
    x = 162,504.65

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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.