Home / 110,982.78-153,121.34-67,917.38

Finding the Fourth Proportional to 110,982.78, 153,121.34 and 67,917.38

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Solution

The fourth proportional to 110,982.78, 153,121.34 and 67,917.38 is: 93,704.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,982.78 : 153,121.34 = 67,917.38 : x
  2. Step 2: Convert to fraction form
    110,982.78/153,121.34 = 67,917.38/x
  3. Step 3: Cross multiply
    110,982.78x = 153,121.34 × 67,917.38
  4. Step 4: Simplify right side
    110,982.78x = 10,399,599,469.28
  5. Step 5: Solve for x
    x = 10,399,599,469.28/110,982.78
  6. Step 6: Final answer
    x = 93,704.62

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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.