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Finding the Third Proportional to 90,580 and 133,086

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Solution

The third proportional to 90,580 and 133,086 is: 195,538.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,580 : 133,086 = 133,086 : x
  2. Step 2: Convert to fraction form
    90,580/133,086 = 133,086/x
  3. Step 3: Cross multiply
    90,580x = 133,086 × 133,086
  4. Step 4: Simplify right side
    90,580x = 17,711,883,396
  5. Step 5: Solve for x
    x = 17,711,883,396/90,580
  6. Step 6: Final answer
    x = 195,538.57

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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.