Home / 131,789.80-197,684.70-106,906.60

Finding the Fourth Proportional to 131,789.80, 197,684.70 and 106,906.60

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Solution

The fourth proportional to 131,789.80, 197,684.70 and 106,906.60 is: 160,359.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,789.80 : 197,684.70 = 106,906.60 : x
  2. Step 2: Convert to fraction form
    131,789.80/197,684.70 = 106,906.60/x
  3. Step 3: Cross multiply
    131,789.80x = 197,684.70 × 106,906.60
  4. Step 4: Simplify right side
    131,789.80x = 21,133,799,149.02
  5. Step 5: Solve for x
    x = 21,133,799,149.02/131,789.80
  6. Step 6: Final answer
    x = 160,359.90

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1.5x scale

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.