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Finding the Third Proportional to 78,804 and 121,122

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Solution

The third proportional to 78,804 and 121,122 is: 186,164.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,804 : 121,122 = 121,122 : x
  2. Step 2: Convert to fraction form
    78,804/121,122 = 121,122/x
  3. Step 3: Cross multiply
    78,804x = 121,122 × 121,122
  4. Step 4: Simplify right side
    78,804x = 14,670,538,884
  5. Step 5: Solve for x
    x = 14,670,538,884/78,804
  6. Step 6: Final answer
    x = 186,164.90

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.