Home / 270,712.92-406,108.26-83,739

Finding the Fourth Proportional to 270,712.92, 406,108.26 and 83,739

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Solution

The fourth proportional to 270,712.92, 406,108.26 and 83,739 is: 125,620.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,712.92 : 406,108.26 = 83,739 : x
  2. Step 2: Convert to fraction form
    270,712.92/406,108.26 = 83,739/x
  3. Step 3: Cross multiply
    270,712.92x = 406,108.26 × 83,739
  4. Step 4: Simplify right side
    270,712.92x = 34,007,099,584.14
  5. Step 5: Solve for x
    x = 34,007,099,584.14/270,712.92
  6. Step 6: Final answer
    x = 125,620.53

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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.