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Finding the Third Proportional to 99,709.31 and 149,636.81

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Solution

The third proportional to 99,709.31 and 149,636.81 is: 224,564.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,709.31 : 149,636.81 = 149,636.81 : x
  2. Step 2: Convert to fraction form
    99,709.31/149,636.81 = 149,636.81/x
  3. Step 3: Cross multiply
    99,709.31x = 149,636.81 × 149,636.81
  4. Step 4: Simplify right side
    99,709.31x = 22,391,175,655.16
  5. Step 5: Solve for x
    x = 22,391,175,655.16/99,709.31
  6. Step 6: Final answer
    x = 224,564.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.