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Finding the Third Proportional to 56,162 and 120,787

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Solution

The third proportional to 56,162 and 120,787 is: 259,775.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,162 : 120,787 = 120,787 : x
  2. Step 2: Convert to fraction form
    56,162/120,787 = 120,787/x
  3. Step 3: Cross multiply
    56,162x = 120,787 × 120,787
  4. Step 4: Simplify right side
    56,162x = 14,589,499,369
  5. Step 5: Solve for x
    x = 14,589,499,369/56,162
  6. Step 6: Final answer
    x = 259,775.28

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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.