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Finding the Third Proportional to 68,528 and 103,521

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Solution

The third proportional to 68,528 and 103,521 is: 156,382.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,528 : 103,521 = 103,521 : x
  2. Step 2: Convert to fraction form
    68,528/103,521 = 103,521/x
  3. Step 3: Cross multiply
    68,528x = 103,521 × 103,521
  4. Step 4: Simplify right side
    68,528x = 10,716,597,441
  5. Step 5: Solve for x
    x = 10,716,597,441/68,528
  6. Step 6: Final answer
    x = 156,382.76

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.