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Finding the Third Proportional to 84,487 and 118,117

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Solution

The third proportional to 84,487 and 118,117 is: 165,133.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,487 : 118,117 = 118,117 : x
  2. Step 2: Convert to fraction form
    84,487/118,117 = 118,117/x
  3. Step 3: Cross multiply
    84,487x = 118,117 × 118,117
  4. Step 4: Simplify right side
    84,487x = 13,951,625,689
  5. Step 5: Solve for x
    x = 13,951,625,689/84,487
  6. Step 6: Final answer
    x = 165,133.40

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.