Home / 186,791.46-280,321.86-74,406.66

Finding the Fourth Proportional to 186,791.46, 280,321.86 and 74,406.66

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Solution

The fourth proportional to 186,791.46, 280,321.86 and 74,406.66 is: 111,663.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,791.46 : 280,321.86 = 74,406.66 : x
  2. Step 2: Convert to fraction form
    186,791.46/280,321.86 = 74,406.66/x
  3. Step 3: Cross multiply
    186,791.46x = 280,321.86 × 74,406.66
  4. Step 4: Simplify right side
    186,791.46x = 20,857,813,327.59
  5. Step 5: Solve for x
    x = 20,857,813,327.59/186,791.46
  6. Step 6: Final answer
    x = 111,663.63

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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.