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Finding the Third Proportional to 77,321.25 and 119,723.63

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Solution

The third proportional to 77,321.25 and 119,723.63 is: 185,379.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,321.25 : 119,723.63 = 119,723.63 : x
  2. Step 2: Convert to fraction form
    77,321.25/119,723.63 = 119,723.63/x
  3. Step 3: Cross multiply
    77,321.25x = 119,723.63 × 119,723.63
  4. Step 4: Simplify right side
    77,321.25x = 14,333,746,383.14
  5. Step 5: Solve for x
    x = 14,333,746,383.14/77,321.25
  6. Step 6: Final answer
    x = 185,379.13

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.