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Finding the Fourth Proportional to 154,857.80, 232,129.80 and 104,942.90

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Solution

The fourth proportional to 154,857.80, 232,129.80 and 104,942.90 is: 157,308.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,857.80 : 232,129.80 = 104,942.90 : x
  2. Step 2: Convert to fraction form
    154,857.80/232,129.80 = 104,942.90/x
  3. Step 3: Cross multiply
    154,857.80x = 232,129.80 × 104,942.90
  4. Step 4: Simplify right side
    154,857.80x = 24,360,374,388.42
  5. Step 5: Solve for x
    x = 24,360,374,388.42/154,857.80
  6. Step 6: Final answer
    x = 157,308.02

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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.