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Finding the Third Proportional to 76,116 and 108,186

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Solution

The third proportional to 76,116 and 108,186 is: 153,768.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,116 : 108,186 = 108,186 : x
  2. Step 2: Convert to fraction form
    76,116/108,186 = 108,186/x
  3. Step 3: Cross multiply
    76,116x = 108,186 × 108,186
  4. Step 4: Simplify right side
    76,116x = 11,704,210,596
  5. Step 5: Solve for x
    x = 11,704,210,596/76,116
  6. Step 6: Final answer
    x = 153,768.07

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.