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Finding the Third Proportional to 91,138 and 133,670

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Solution

The third proportional to 91,138 and 133,670 is: 196,050.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,138 : 133,670 = 133,670 : x
  2. Step 2: Convert to fraction form
    91,138/133,670 = 133,670/x
  3. Step 3: Cross multiply
    91,138x = 133,670 × 133,670
  4. Step 4: Simplify right side
    91,138x = 17,867,668,900
  5. Step 5: Solve for x
    x = 17,867,668,900/91,138
  6. Step 6: Final answer
    x = 196,050.70

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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.