Home / 137,738.80-206,608.20-136,426.60

Finding the Fourth Proportional to 137,738.80, 206,608.20 and 136,426.60

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Solution

The fourth proportional to 137,738.80, 206,608.20 and 136,426.60 is: 204,639.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,738.80 : 206,608.20 = 136,426.60 : x
  2. Step 2: Convert to fraction form
    137,738.80/206,608.20 = 136,426.60/x
  3. Step 3: Cross multiply
    137,738.80x = 206,608.20 × 136,426.60
  4. Step 4: Simplify right side
    137,738.80x = 28,186,854,258.12
  5. Step 5: Solve for x
    x = 28,186,854,258.12/137,738.80
  6. Step 6: Final answer
    x = 204,639.90

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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.