Home / 186,183.74-279,275.20-67,806.70

Finding the Fourth Proportional to 186,183.74, 279,275.20 and 67,806.70

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Solution

The fourth proportional to 186,183.74, 279,275.20 and 67,806.70 is: 101,709.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,183.74 : 279,275.20 = 67,806.70 : x
  2. Step 2: Convert to fraction form
    186,183.74/279,275.20 = 67,806.70/x
  3. Step 3: Cross multiply
    186,183.74x = 279,275.20 × 67,806.70
  4. Step 4: Simplify right side
    186,183.74x = 18,936,729,703.84
  5. Step 5: Solve for x
    x = 18,936,729,703.84/186,183.74
  6. Step 6: Final answer
    x = 101,709.90

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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.