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Finding the Third Proportional to 112,815 and 149,751

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Solution

The third proportional to 112,815 and 149,751 is: 198,779.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,815 : 149,751 = 149,751 : x
  2. Step 2: Convert to fraction form
    112,815/149,751 = 149,751/x
  3. Step 3: Cross multiply
    112,815x = 149,751 × 149,751
  4. Step 4: Simplify right side
    112,815x = 22,425,362,001
  5. Step 5: Solve for x
    x = 22,425,362,001/112,815
  6. Step 6: Final answer
    x = 198,779.97

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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.