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Finding the Third Proportional to 87,558.05 and 128,214.46

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Solution

The third proportional to 87,558.05 and 128,214.46 is: 187,749.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,558.05 : 128,214.46 = 128,214.46 : x
  2. Step 2: Convert to fraction form
    87,558.05/128,214.46 = 128,214.46/x
  3. Step 3: Cross multiply
    87,558.05x = 128,214.46 × 128,214.46
  4. Step 4: Simplify right side
    87,558.05x = 16,438,946,991.82
  5. Step 5: Solve for x
    x = 16,438,946,991.82/87,558.05
  6. Step 6: Final answer
    x = 187,749.13

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.