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Finding the Third Proportional to 70,148 and 98,670

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Solution

The third proportional to 70,148 and 98,670 is: 138,788.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,148 : 98,670 = 98,670 : x
  2. Step 2: Convert to fraction form
    70,148/98,670 = 98,670/x
  3. Step 3: Cross multiply
    70,148x = 98,670 × 98,670
  4. Step 4: Simplify right side
    70,148x = 9,735,768,900
  5. Step 5: Solve for x
    x = 9,735,768,900/70,148
  6. Step 6: Final answer
    x = 138,788.97

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.