Home / 262,719.45-394,134.57-85,212.68

Finding the Fourth Proportional to 262,719.45, 394,134.57 and 85,212.68

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Solution

The fourth proportional to 262,719.45, 394,134.57 and 85,212.68 is: 127,836.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,719.45 : 394,134.57 = 85,212.68 : x
  2. Step 2: Convert to fraction form
    262,719.45/394,134.57 = 85,212.68/x
  3. Step 3: Cross multiply
    262,719.45x = 394,134.57 × 85,212.68
  4. Step 4: Simplify right side
    262,719.45x = 33,585,261,019.67
  5. Step 5: Solve for x
    x = 33,585,261,019.67/262,719.45
  6. Step 6: Final answer
    x = 127,836.98

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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.