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Finding the Third Proportional to 121,878 and 184,113

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Solution

The third proportional to 121,878 and 184,113 is: 278,127.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,878 : 184,113 = 184,113 : x
  2. Step 2: Convert to fraction form
    121,878/184,113 = 184,113/x
  3. Step 3: Cross multiply
    121,878x = 184,113 × 184,113
  4. Step 4: Simplify right side
    121,878x = 33,897,596,769
  5. Step 5: Solve for x
    x = 33,897,596,769/121,878
  6. Step 6: Final answer
    x = 278,127.28

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.