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Finding the Third Proportional to 89,214.50 and 121,105.13

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Solution

The third proportional to 89,214.50 and 121,105.13 is: 164,395.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,214.50 : 121,105.13 = 121,105.13 : x
  2. Step 2: Convert to fraction form
    89,214.50/121,105.13 = 121,105.13/x
  3. Step 3: Cross multiply
    89,214.50x = 121,105.13 × 121,105.13
  4. Step 4: Simplify right side
    89,214.50x = 14,666,451,301.27
  5. Step 5: Solve for x
    x = 14,666,451,301.27/89,214.50
  6. Step 6: Final answer
    x = 164,395.38

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.