Home / 235,138.32-324,481.68-139,642.56

Finding the Fourth Proportional to 235,138.32, 324,481.68 and 139,642.56

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Solution

The fourth proportional to 235,138.32, 324,481.68 and 139,642.56 is: 192,701.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,138.32 : 324,481.68 = 139,642.56 : x
  2. Step 2: Convert to fraction form
    235,138.32/324,481.68 = 139,642.56/x
  3. Step 3: Cross multiply
    235,138.32x = 324,481.68 × 139,642.56
  4. Step 4: Simplify right side
    235,138.32x = 45,311,452,468.30
  5. Step 5: Solve for x
    x = 45,311,452,468.30/235,138.32
  6. Step 6: Final answer
    x = 192,701.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.