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Finding the Third Proportional to 118,627 and 139,541

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Solution

The third proportional to 118,627 and 139,541 is: 164,142.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,627 : 139,541 = 139,541 : x
  2. Step 2: Convert to fraction form
    118,627/139,541 = 139,541/x
  3. Step 3: Cross multiply
    118,627x = 139,541 × 139,541
  4. Step 4: Simplify right side
    118,627x = 19,471,690,681
  5. Step 5: Solve for x
    x = 19,471,690,681/118,627
  6. Step 6: Final answer
    x = 164,142.15

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Why These Related Problems?

These problems maintain the same ratio (1.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.