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Finding the Third Proportional to 90,440 and 133,045

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Solution

The third proportional to 90,440 and 133,045 is: 195,720.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,440 : 133,045 = 133,045 : x
  2. Step 2: Convert to fraction form
    90,440/133,045 = 133,045/x
  3. Step 3: Cross multiply
    90,440x = 133,045 × 133,045
  4. Step 4: Simplify right side
    90,440x = 17,700,972,025
  5. Step 5: Solve for x
    x = 17,700,972,025/90,440
  6. Step 6: Final answer
    x = 195,720.61

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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.