Home / 235,441.35-324,900.18-128,007.68

Finding the Fourth Proportional to 235,441.35, 324,900.18 and 128,007.68

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Solution

The fourth proportional to 235,441.35, 324,900.18 and 128,007.68 is: 176,645.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,441.35 : 324,900.18 = 128,007.68 : x
  2. Step 2: Convert to fraction form
    235,441.35/324,900.18 = 128,007.68/x
  3. Step 3: Cross multiply
    235,441.35x = 324,900.18 × 128,007.68
  4. Step 4: Simplify right side
    235,441.35x = 41,589,716,648.88
  5. Step 5: Solve for x
    x = 41,589,716,648.88/235,441.35
  6. Step 6: Final answer
    x = 176,645.76

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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.