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Finding the Third Proportional to 75,303 and 100,390

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Solution

The third proportional to 75,303 and 100,390 is: 133,834.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,303 : 100,390 = 100,390 : x
  2. Step 2: Convert to fraction form
    75,303/100,390 = 100,390/x
  3. Step 3: Cross multiply
    75,303x = 100,390 × 100,390
  4. Step 4: Simplify right side
    75,303x = 10,078,152,100
  5. Step 5: Solve for x
    x = 10,078,152,100/75,303
  6. Step 6: Final answer
    x = 133,834.67

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.