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Finding the Third Proportional to 85,607 and 133,073

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Solution

The third proportional to 85,607 and 133,073 is: 206,857.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,607 : 133,073 = 133,073 : x
  2. Step 2: Convert to fraction form
    85,607/133,073 = 133,073/x
  3. Step 3: Cross multiply
    85,607x = 133,073 × 133,073
  4. Step 4: Simplify right side
    85,607x = 17,708,423,329
  5. Step 5: Solve for x
    x = 17,708,423,329/85,607
  6. Step 6: Final answer
    x = 206,857.19

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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.