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Finding the Third Proportional to 87,518.81 and 191,979.94

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Solution

The third proportional to 87,518.81 and 191,979.94 is: 421,124.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,518.81 : 191,979.94 = 191,979.94 : x
  2. Step 2: Convert to fraction form
    87,518.81/191,979.94 = 191,979.94/x
  3. Step 3: Cross multiply
    87,518.81x = 191,979.94 × 191,979.94
  4. Step 4: Simplify right side
    87,518.81x = 36,856,296,402.50
  5. Step 5: Solve for x
    x = 36,856,296,402.50/87,518.81
  6. Step 6: Final answer
    x = 421,124.27

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.