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Finding the Third Proportional to 89,237 and 138,175

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Solution

The third proportional to 89,237 and 138,175 is: 213,950.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,237 : 138,175 = 138,175 : x
  2. Step 2: Convert to fraction form
    89,237/138,175 = 138,175/x
  3. Step 3: Cross multiply
    89,237x = 138,175 × 138,175
  4. Step 4: Simplify right side
    89,237x = 19,092,330,625
  5. Step 5: Solve for x
    x = 19,092,330,625/89,237
  6. Step 6: Final answer
    x = 213,950.83

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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.