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Finding the Third Proportional to 40,561 and 87,158

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Solution

The third proportional to 40,561 and 87,158 is: 187,286.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,561 : 87,158 = 87,158 : x
  2. Step 2: Convert to fraction form
    40,561/87,158 = 87,158/x
  3. Step 3: Cross multiply
    40,561x = 87,158 × 87,158
  4. Step 4: Simplify right side
    40,561x = 7,596,516,964
  5. Step 5: Solve for x
    x = 7,596,516,964/40,561
  6. Step 6: Final answer
    x = 187,286.23

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.