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Finding the Third Proportional to 76,619 and 118,938

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Solution

The third proportional to 76,619 and 118,938 is: 184,631.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,619 : 118,938 = 118,938 : x
  2. Step 2: Convert to fraction form
    76,619/118,938 = 118,938/x
  3. Step 3: Cross multiply
    76,619x = 118,938 × 118,938
  4. Step 4: Simplify right side
    76,619x = 14,146,247,844
  5. Step 5: Solve for x
    x = 14,146,247,844/76,619
  6. Step 6: Final answer
    x = 184,631.07

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.