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Finding the Third Proportional to 118,961 and 161,485

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Solution

The third proportional to 118,961 and 161,485 is: 219,209.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,961 : 161,485 = 161,485 : x
  2. Step 2: Convert to fraction form
    118,961/161,485 = 161,485/x
  3. Step 3: Cross multiply
    118,961x = 161,485 × 161,485
  4. Step 4: Simplify right side
    118,961x = 26,077,405,225
  5. Step 5: Solve for x
    x = 26,077,405,225/118,961
  6. Step 6: Final answer
    x = 219,209.70

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.