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Finding the Third Proportional to 70,590 and 98,916

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Solution

The third proportional to 70,590 and 98,916 is: 138,608.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,590 : 98,916 = 98,916 : x
  2. Step 2: Convert to fraction form
    70,590/98,916 = 98,916/x
  3. Step 3: Cross multiply
    70,590x = 98,916 × 98,916
  4. Step 4: Simplify right side
    70,590x = 9,784,375,056
  5. Step 5: Solve for x
    x = 9,784,375,056/70,590
  6. Step 6: Final answer
    x = 138,608.51

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.