Home / 189,835.20-284,493.60-126,475.20

Finding the Fourth Proportional to 189,835.20, 284,493.60 and 126,475.20

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Solution

The fourth proportional to 189,835.20, 284,493.60 and 126,475.20 is: 189,540.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,835.20 : 284,493.60 = 126,475.20 : x
  2. Step 2: Convert to fraction form
    189,835.20/284,493.60 = 126,475.20/x
  3. Step 3: Cross multiply
    189,835.20x = 284,493.60 × 126,475.20
  4. Step 4: Simplify right side
    189,835.20x = 35,981,384,958.72
  5. Step 5: Solve for x
    x = 35,981,384,958.72/189,835.20
  6. Step 6: Final answer
    x = 189,540.11

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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.