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Finding the Third Proportional to 108,745 and 153,138

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Solution

The third proportional to 108,745 and 153,138 is: 215,653.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,745 : 153,138 = 153,138 : x
  2. Step 2: Convert to fraction form
    108,745/153,138 = 153,138/x
  3. Step 3: Cross multiply
    108,745x = 153,138 × 153,138
  4. Step 4: Simplify right side
    108,745x = 23,451,247,044
  5. Step 5: Solve for x
    x = 23,451,247,044/108,745
  6. Step 6: Final answer
    x = 215,653.57

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.