Home / 203,942.80-305,914.20-109,464.40

Finding the Fourth Proportional to 203,942.80, 305,914.20 and 109,464.40

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Solution

The fourth proportional to 203,942.80, 305,914.20 and 109,464.40 is: 164,196.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,942.80 : 305,914.20 = 109,464.40 : x
  2. Step 2: Convert to fraction form
    203,942.80/305,914.20 = 109,464.40/x
  3. Step 3: Cross multiply
    203,942.80x = 305,914.20 × 109,464.40
  4. Step 4: Simplify right side
    203,942.80x = 33,486,714,354.48
  5. Step 5: Solve for x
    x = 33,486,714,354.48/203,942.80
  6. Step 6: Final answer
    x = 164,196.60

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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.