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Finding the Fourth Proportional to 136,371.92, 188,193.21 and 79,794.26

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Solution

The fourth proportional to 136,371.92, 188,193.21 and 79,794.26 is: 110,116.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,371.92 : 188,193.21 = 79,794.26 : x
  2. Step 2: Convert to fraction form
    136,371.92/188,193.21 = 79,794.26/x
  3. Step 3: Cross multiply
    136,371.92x = 188,193.21 × 79,794.26
  4. Step 4: Simplify right side
    136,371.92x = 15,016,737,928.97
  5. Step 5: Solve for x
    x = 15,016,737,928.97/136,371.92
  6. Step 6: Final answer
    x = 110,116.06

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1.5x scale

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.