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Finding the Third Proportional to 84,894 and 129,285

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Solution

The third proportional to 84,894 and 129,285 is: 196,888.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,894 : 129,285 = 129,285 : x
  2. Step 2: Convert to fraction form
    84,894/129,285 = 129,285/x
  3. Step 3: Cross multiply
    84,894x = 129,285 × 129,285
  4. Step 4: Simplify right side
    84,894x = 16,714,611,225
  5. Step 5: Solve for x
    x = 16,714,611,225/84,894
  6. Step 6: Final answer
    x = 196,888.02

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.