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Finding the Fourth Proportional to 186,311.78, 279,550.72 and 67,955.44

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Solution

The fourth proportional to 186,311.78, 279,550.72 and 67,955.44 is: 101,963.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,311.78 : 279,550.72 = 67,955.44 : x
  2. Step 2: Convert to fraction form
    186,311.78/279,550.72 = 67,955.44/x
  3. Step 3: Cross multiply
    186,311.78x = 279,550.72 × 67,955.44
  4. Step 4: Simplify right side
    186,311.78x = 18,996,992,179.92
  5. Step 5: Solve for x
    x = 18,996,992,179.92/186,311.78
  6. Step 6: Final answer
    x = 101,963.45

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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.