Home / 154,021.20-231,204.60-119,115.60

Finding the Fourth Proportional to 154,021.20, 231,204.60 and 119,115.60

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Solution

The fourth proportional to 154,021.20, 231,204.60 and 119,115.60 is: 178,807.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,021.20 : 231,204.60 = 119,115.60 : x
  2. Step 2: Convert to fraction form
    154,021.20/231,204.60 = 119,115.60/x
  3. Step 3: Cross multiply
    154,021.20x = 231,204.60 × 119,115.60
  4. Step 4: Simplify right side
    154,021.20x = 27,540,074,651.76
  5. Step 5: Solve for x
    x = 27,540,074,651.76/154,021.20
  6. Step 6: Final answer
    x = 178,807.04

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1.5x scale

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.