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Finding the Third Proportional to 71,447 and 106,819

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Solution

The third proportional to 71,447 and 106,819 is: 159,702.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,447 : 106,819 = 106,819 : x
  2. Step 2: Convert to fraction form
    71,447/106,819 = 106,819/x
  3. Step 3: Cross multiply
    71,447x = 106,819 × 106,819
  4. Step 4: Simplify right side
    71,447x = 11,410,298,761
  5. Step 5: Solve for x
    x = 11,410,298,761/71,447
  6. Step 6: Final answer
    x = 159,702.98

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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.