Home / 136,771.25-188,775.83-80,200.85

Finding the Fourth Proportional to 136,771.25, 188,775.83 and 80,200.85

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Solution

The fourth proportional to 136,771.25, 188,775.83 and 80,200.85 is: 110,695.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,771.25 : 188,775.83 = 80,200.85 : x
  2. Step 2: Convert to fraction form
    136,771.25/188,775.83 = 80,200.85/x
  3. Step 3: Cross multiply
    136,771.25x = 188,775.83 × 80,200.85
  4. Step 4: Simplify right side
    136,771.25x = 15,139,982,096.39
  5. Step 5: Solve for x
    x = 15,139,982,096.39/136,771.25
  6. Step 6: Final answer
    x = 110,695.65

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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.