Home / 134,198.40-185,200.92-80,485.68

Finding the Fourth Proportional to 134,198.40, 185,200.92 and 80,485.68

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Solution

The fourth proportional to 134,198.40, 185,200.92 and 80,485.68 is: 111,074.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,198.40 : 185,200.92 = 80,485.68 : x
  2. Step 2: Convert to fraction form
    134,198.40/185,200.92 = 80,485.68/x
  3. Step 3: Cross multiply
    134,198.40x = 185,200.92 × 80,485.68
  4. Step 4: Simplify right side
    134,198.40x = 14,906,021,982.83
  5. Step 5: Solve for x
    x = 14,906,021,982.83/134,198.40
  6. Step 6: Final answer
    x = 111,074.51

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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.