Home / 154,640.20-231,614.70-119,302.60

Finding the Fourth Proportional to 154,640.20, 231,614.70 and 119,302.60

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Solution

The fourth proportional to 154,640.20, 231,614.70 and 119,302.60 is: 178,687.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,640.20 : 231,614.70 = 119,302.60 : x
  2. Step 2: Convert to fraction form
    154,640.20/231,614.70 = 119,302.60/x
  3. Step 3: Cross multiply
    154,640.20x = 231,614.70 × 119,302.60
  4. Step 4: Simplify right side
    154,640.20x = 27,632,235,908.22
  5. Step 5: Solve for x
    x = 27,632,235,908.22/154,640.20
  6. Step 6: Final answer
    x = 178,687.27

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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.