Home / 186,098.88-279,222.96-67,778.40

Finding the Fourth Proportional to 186,098.88, 279,222.96 and 67,778.40

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Solution

The fourth proportional to 186,098.88, 279,222.96 and 67,778.40 is: 101,694.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,098.88 : 279,222.96 = 67,778.40 : x
  2. Step 2: Convert to fraction form
    186,098.88/279,222.96 = 67,778.40/x
  3. Step 3: Cross multiply
    186,098.88x = 279,222.96 × 67,778.40
  4. Step 4: Simplify right side
    186,098.88x = 18,925,285,472.06
  5. Step 5: Solve for x
    x = 18,925,285,472.06/186,098.88
  6. Step 6: Final answer
    x = 101,694.78

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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.