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Finding the Third Proportional to 47,128 and 102,556

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Solution

The third proportional to 47,128 and 102,556 is: 223,173.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,128 : 102,556 = 102,556 : x
  2. Step 2: Convert to fraction form
    47,128/102,556 = 102,556/x
  3. Step 3: Cross multiply
    47,128x = 102,556 × 102,556
  4. Step 4: Simplify right side
    47,128x = 10,517,733,136
  5. Step 5: Solve for x
    x = 10,517,733,136/47,128
  6. Step 6: Final answer
    x = 223,173.76

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.