Home / 113,180.52-156,198.42-72,977.97

Finding the Fourth Proportional to 113,180.52, 156,198.42 and 72,977.97

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Solution

The fourth proportional to 113,180.52, 156,198.42 and 72,977.97 is: 100,715.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,180.52 : 156,198.42 = 72,977.97 : x
  2. Step 2: Convert to fraction form
    113,180.52/156,198.42 = 72,977.97/x
  3. Step 3: Cross multiply
    113,180.52x = 156,198.42 × 72,977.97
  4. Step 4: Simplify right side
    113,180.52x = 11,399,043,608.81
  5. Step 5: Solve for x
    x = 11,399,043,608.81/113,180.52
  6. Step 6: Final answer
    x = 100,715.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.