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Finding the Third Proportional to 72,313 and 110,930

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Solution

The third proportional to 72,313 and 110,930 is: 170,169.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,313 : 110,930 = 110,930 : x
  2. Step 2: Convert to fraction form
    72,313/110,930 = 110,930/x
  3. Step 3: Cross multiply
    72,313x = 110,930 × 110,930
  4. Step 4: Simplify right side
    72,313x = 12,305,464,900
  5. Step 5: Solve for x
    x = 12,305,464,900/72,313
  6. Step 6: Final answer
    x = 170,169.47

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.