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Finding the Third Proportional to 76,321.50 and 112,275

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Solution

The third proportional to 76,321.50 and 112,275 is: 165,165.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,321.50 : 112,275 = 112,275 : x
  2. Step 2: Convert to fraction form
    76,321.50/112,275 = 112,275/x
  3. Step 3: Cross multiply
    76,321.50x = 112,275 × 112,275
  4. Step 4: Simplify right side
    76,321.50x = 12,605,675,625
  5. Step 5: Solve for x
    x = 12,605,675,625/76,321.50
  6. Step 6: Final answer
    x = 165,165.46

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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.