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Finding the Third Proportional to 99,811.50 and 146,799.75

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Solution

The third proportional to 99,811.50 and 146,799.75 is: 215,908.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,811.50 : 146,799.75 = 146,799.75 : x
  2. Step 2: Convert to fraction form
    99,811.50/146,799.75 = 146,799.75/x
  3. Step 3: Cross multiply
    99,811.50x = 146,799.75 × 146,799.75
  4. Step 4: Simplify right side
    99,811.50x = 21,550,166,600.06
  5. Step 5: Solve for x
    x = 21,550,166,600.06/99,811.50
  6. Step 6: Final answer
    x = 215,908.65

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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.