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Finding the Third Proportional to 121,103 and 189,013

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Solution

The third proportional to 121,103 and 189,013 is: 295,004.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,103 : 189,013 = 189,013 : x
  2. Step 2: Convert to fraction form
    121,103/189,013 = 189,013/x
  3. Step 3: Cross multiply
    121,103x = 189,013 × 189,013
  4. Step 4: Simplify right side
    121,103x = 35,725,914,169
  5. Step 5: Solve for x
    x = 35,725,914,169/121,103
  6. Step 6: Final answer
    x = 295,004.37

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.