Home / 156,711.70-235,067.55-154,378.90

Finding the Fourth Proportional to 156,711.70, 235,067.55 and 154,378.90

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Solution

The fourth proportional to 156,711.70, 235,067.55 and 154,378.90 is: 231,568.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,711.70 : 235,067.55 = 154,378.90 : x
  2. Step 2: Convert to fraction form
    156,711.70/235,067.55 = 154,378.90/x
  3. Step 3: Cross multiply
    156,711.70x = 235,067.55 × 154,378.90
  4. Step 4: Simplify right side
    156,711.70x = 36,289,469,794.70
  5. Step 5: Solve for x
    x = 36,289,469,794.70/156,711.70
  6. Step 6: Final answer
    x = 231,568.35

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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.