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Finding the Third Proportional to 92,091 and 138,478

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Solution

The third proportional to 92,091 and 138,478 is: 208,230.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,091 : 138,478 = 138,478 : x
  2. Step 2: Convert to fraction form
    92,091/138,478 = 138,478/x
  3. Step 3: Cross multiply
    92,091x = 138,478 × 138,478
  4. Step 4: Simplify right side
    92,091x = 19,176,156,484
  5. Step 5: Solve for x
    x = 19,176,156,484/92,091
  6. Step 6: Final answer
    x = 208,230.52

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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.