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Finding the Third Proportional to 68,526 and 102,789

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Solution

The third proportional to 68,526 and 102,789 is: 154,183.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,526 : 102,789 = 102,789 : x
  2. Step 2: Convert to fraction form
    68,526/102,789 = 102,789/x
  3. Step 3: Cross multiply
    68,526x = 102,789 × 102,789
  4. Step 4: Simplify right side
    68,526x = 10,565,578,521
  5. Step 5: Solve for x
    x = 10,565,578,521/68,526
  6. Step 6: Final answer
    x = 154,183.50

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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.