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Finding the Fourth Proportional to 101,101.91, 151,587.99 and 41,978.39

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Solution

The fourth proportional to 101,101.91, 151,587.99 and 41,978.39 is: 62,940.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,101.91 : 151,587.99 = 41,978.39 : x
  2. Step 2: Convert to fraction form
    101,101.91/151,587.99 = 41,978.39/x
  3. Step 3: Cross multiply
    101,101.91x = 151,587.99 × 41,978.39
  4. Step 4: Simplify right side
    101,101.91x = 6,363,419,553.64
  5. Step 5: Solve for x
    x = 6,363,419,553.64/101,101.91
  6. Step 6: Final answer
    x = 62,940.65

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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.