Home / 154,042.20-231,236.10-119,136.60

Finding the Fourth Proportional to 154,042.20, 231,236.10 and 119,136.60

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Solution

The fourth proportional to 154,042.20, 231,236.10 and 119,136.60 is: 178,838.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,042.20 : 231,236.10 = 119,136.60 : x
  2. Step 2: Convert to fraction form
    154,042.20/231,236.10 = 119,136.60/x
  3. Step 3: Cross multiply
    154,042.20x = 231,236.10 × 119,136.60
  4. Step 4: Simplify right side
    154,042.20x = 27,548,682,751.26
  5. Step 5: Solve for x
    x = 27,548,682,751.26/154,042.20
  6. Step 6: Final answer
    x = 178,838.54

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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.