Home / 128,976.82-193,539.04-50,080.79

Finding the Fourth Proportional to 128,976.82, 193,539.04 and 50,080.79

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Solution

The fourth proportional to 128,976.82, 193,539.04 and 50,080.79 is: 75,149.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,976.82 : 193,539.04 = 50,080.79 : x
  2. Step 2: Convert to fraction form
    128,976.82/193,539.04 = 50,080.79/x
  3. Step 3: Cross multiply
    128,976.82x = 193,539.04 × 50,080.79
  4. Step 4: Simplify right side
    128,976.82x = 9,692,588,377.69
  5. Step 5: Solve for x
    x = 9,692,588,377.69/128,976.82
  6. Step 6: Final answer
    x = 75,149.85

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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.