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Finding the Third Proportional to 87,890.06 and 115,090.88

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Solution

The third proportional to 87,890.06 and 115,090.88 is: 150,709.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,890.06 : 115,090.88 = 115,090.88 : x
  2. Step 2: Convert to fraction form
    87,890.06/115,090.88 = 115,090.88/x
  3. Step 3: Cross multiply
    87,890.06x = 115,090.88 × 115,090.88
  4. Step 4: Simplify right side
    87,890.06x = 13,245,909,508.27
  5. Step 5: Solve for x
    x = 13,245,909,508.27/87,890.06
  6. Step 6: Final answer
    x = 150,709.98

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Why These Related Problems?

These problems maintain the same ratio (1.31) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.