Home / 101,951.28-140,732-67,947.36

Finding the Fourth Proportional to 101,951.28, 140,732 and 67,947.36

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Solution

The fourth proportional to 101,951.28, 140,732 and 67,947.36 is: 93,793.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,951.28 : 140,732 = 67,947.36 : x
  2. Step 2: Convert to fraction form
    101,951.28/140,732 = 67,947.36/x
  3. Step 3: Cross multiply
    101,951.28x = 140,732 × 67,947.36
  4. Step 4: Simplify right side
    101,951.28x = 9,562,367,867.52
  5. Step 5: Solve for x
    x = 9,562,367,867.52/101,951.28
  6. Step 6: Final answer
    x = 93,793.50

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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.