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Finding the Third Proportional to 70,630 and 100,668

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Solution

The third proportional to 70,630 and 100,668 is: 143,480.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,630 : 100,668 = 100,668 : x
  2. Step 2: Convert to fraction form
    70,630/100,668 = 100,668/x
  3. Step 3: Cross multiply
    70,630x = 100,668 × 100,668
  4. Step 4: Simplify right side
    70,630x = 10,134,046,224
  5. Step 5: Solve for x
    x = 10,134,046,224/70,630
  6. Step 6: Final answer
    x = 143,480.76

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.