Home / 131,806.40-197,709.60-108,186.80

Finding the Fourth Proportional to 131,806.40, 197,709.60 and 108,186.80

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Solution

The fourth proportional to 131,806.40, 197,709.60 and 108,186.80 is: 162,280.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,806.40 : 197,709.60 = 108,186.80 : x
  2. Step 2: Convert to fraction form
    131,806.40/197,709.60 = 108,186.80/x
  3. Step 3: Cross multiply
    131,806.40x = 197,709.60 × 108,186.80
  4. Step 4: Simplify right side
    131,806.40x = 21,389,568,953.28
  5. Step 5: Solve for x
    x = 21,389,568,953.28/131,806.40
  6. Step 6: Final answer
    x = 162,280.20

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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.