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Finding the Third Proportional to 99,699 and 142,202

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Solution

The third proportional to 99,699 and 142,202 is: 202,824.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,699 : 142,202 = 142,202 : x
  2. Step 2: Convert to fraction form
    99,699/142,202 = 142,202/x
  3. Step 3: Cross multiply
    99,699x = 142,202 × 142,202
  4. Step 4: Simplify right side
    99,699x = 20,221,408,804
  5. Step 5: Solve for x
    x = 20,221,408,804/99,699
  6. Step 6: Final answer
    x = 202,824.59

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.