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Finding the Third Proportional to 70,513 and 109,235

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Solution

The third proportional to 70,513 and 109,235 is: 169,221.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,513 : 109,235 = 109,235 : x
  2. Step 2: Convert to fraction form
    70,513/109,235 = 109,235/x
  3. Step 3: Cross multiply
    70,513x = 109,235 × 109,235
  4. Step 4: Simplify right side
    70,513x = 11,932,285,225
  5. Step 5: Solve for x
    x = 11,932,285,225/70,513
  6. Step 6: Final answer
    x = 169,221.07

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.