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Finding the Third Proportional to 78,807 and 120,567

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Solution

The third proportional to 78,807 and 120,567 is: 184,455.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,807 : 120,567 = 120,567 : x
  2. Step 2: Convert to fraction form
    78,807/120,567 = 120,567/x
  3. Step 3: Cross multiply
    78,807x = 120,567 × 120,567
  4. Step 4: Simplify right side
    78,807x = 14,536,401,489
  5. Step 5: Solve for x
    x = 14,536,401,489/78,807
  6. Step 6: Final answer
    x = 184,455.71

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.