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Finding the Third Proportional to 87,457.50 and 133,719.75

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Solution

The third proportional to 87,457.50 and 133,719.75 is: 204,453.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,457.50 : 133,719.75 = 133,719.75 : x
  2. Step 2: Convert to fraction form
    87,457.50/133,719.75 = 133,719.75/x
  3. Step 3: Cross multiply
    87,457.50x = 133,719.75 × 133,719.75
  4. Step 4: Simplify right side
    87,457.50x = 17,880,971,540.06
  5. Step 5: Solve for x
    x = 17,880,971,540.06/87,457.50
  6. Step 6: Final answer
    x = 204,453.27

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.