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Finding the Third Proportional to 77,010 and 115,197

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Solution

The third proportional to 77,010 and 115,197 is: 172,319.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,010 : 115,197 = 115,197 : x
  2. Step 2: Convert to fraction form
    77,010/115,197 = 115,197/x
  3. Step 3: Cross multiply
    77,010x = 115,197 × 115,197
  4. Step 4: Simplify right side
    77,010x = 13,270,348,809
  5. Step 5: Solve for x
    x = 13,270,348,809/77,010
  6. Step 6: Final answer
    x = 172,319.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.