Home / 186,266.78-279,231.69-67,910.43

Finding the Fourth Proportional to 186,266.78, 279,231.69 and 67,910.43

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Solution

The fourth proportional to 186,266.78, 279,231.69 and 67,910.43 is: 101,804.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,266.78 : 279,231.69 = 67,910.43 : x
  2. Step 2: Convert to fraction form
    186,266.78/279,231.69 = 67,910.43/x
  3. Step 3: Cross multiply
    186,266.78x = 279,231.69 × 67,910.43
  4. Step 4: Simplify right side
    186,266.78x = 18,962,745,439.31
  5. Step 5: Solve for x
    x = 18,962,745,439.31/186,266.78
  6. Step 6: Final answer
    x = 101,804.23

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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.