Home / 100,481.16-138,678.42-60,196.62

Finding the Fourth Proportional to 100,481.16, 138,678.42 and 60,196.62

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Solution

The fourth proportional to 100,481.16, 138,678.42 and 60,196.62 is: 83,079.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,481.16 : 138,678.42 = 60,196.62 : x
  2. Step 2: Convert to fraction form
    100,481.16/138,678.42 = 60,196.62/x
  3. Step 3: Cross multiply
    100,481.16x = 138,678.42 × 60,196.62
  4. Step 4: Simplify right side
    100,481.16x = 8,347,972,150.94
  5. Step 5: Solve for x
    x = 8,347,972,150.94/100,481.16
  6. Step 6: Final answer
    x = 83,079.97

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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.