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Finding the Fourth Proportional to 100,166.86, 150,028.82 and 68,501.88

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Solution

The fourth proportional to 100,166.86, 150,028.82 and 68,501.88 is: 102,601.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,166.86 : 150,028.82 = 68,501.88 : x
  2. Step 2: Convert to fraction form
    100,166.86/150,028.82 = 68,501.88/x
  3. Step 3: Cross multiply
    100,166.86x = 150,028.82 × 68,501.88
  4. Step 4: Simplify right side
    100,166.86x = 10,277,256,224.18
  5. Step 5: Solve for x
    x = 10,277,256,224.18/100,166.86
  6. Step 6: Final answer
    x = 102,601.36

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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.