Home / 126,418.20-189,497.70-73,800.60

Finding the Fourth Proportional to 126,418.20, 189,497.70 and 73,800.60

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Solution

The fourth proportional to 126,418.20, 189,497.70 and 73,800.60 is: 110,625.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,418.20 : 189,497.70 = 73,800.60 : x
  2. Step 2: Convert to fraction form
    126,418.20/189,497.70 = 73,800.60/x
  3. Step 3: Cross multiply
    126,418.20x = 189,497.70 × 73,800.60
  4. Step 4: Simplify right side
    126,418.20x = 13,985,043,958.62
  5. Step 5: Solve for x
    x = 13,985,043,958.62/126,418.20
  6. Step 6: Final answer
    x = 110,625.24

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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.