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Finding the Third Proportional to 90,555 and 133,057

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Solution

The third proportional to 90,555 and 133,057 is: 195,507.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,555 : 133,057 = 133,057 : x
  2. Step 2: Convert to fraction form
    90,555/133,057 = 133,057/x
  3. Step 3: Cross multiply
    90,555x = 133,057 × 133,057
  4. Step 4: Simplify right side
    90,555x = 17,704,165,249
  5. Step 5: Solve for x
    x = 17,704,165,249/90,555
  6. Step 6: Final answer
    x = 195,507.32

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.