Home / 119,409.32-179,115.78-30,660.86

Finding the Fourth Proportional to 119,409.32, 179,115.78 and 30,660.86

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Solution

The fourth proportional to 119,409.32, 179,115.78 and 30,660.86 is: 45,991.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,409.32 : 179,115.78 = 30,660.86 : x
  2. Step 2: Convert to fraction form
    119,409.32/179,115.78 = 30,660.86/x
  3. Step 3: Cross multiply
    119,409.32x = 179,115.78 × 30,660.86
  4. Step 4: Simplify right side
    119,409.32x = 5,491,842,958.79
  5. Step 5: Solve for x
    x = 5,491,842,958.79/119,409.32
  6. Step 6: Final answer
    x = 45,991.75

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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.