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Finding the Fourth Proportional to 154,044.60, 231,066.90 and 122,940.60

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Solution

The fourth proportional to 154,044.60, 231,066.90 and 122,940.60 is: 184,410.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,044.60 : 231,066.90 = 122,940.60 : x
  2. Step 2: Convert to fraction form
    154,044.60/231,066.90 = 122,940.60/x
  3. Step 3: Cross multiply
    154,044.60x = 231,066.90 × 122,940.60
  4. Step 4: Simplify right side
    154,044.60x = 28,407,503,326.14
  5. Step 5: Solve for x
    x = 28,407,503,326.14/154,044.60
  6. Step 6: Final answer
    x = 184,410.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.