Home / 126,753.44-189,751.34-76,682.21

Finding the Fourth Proportional to 126,753.44, 189,751.34 and 76,682.21

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Solution

The fourth proportional to 126,753.44, 189,751.34 and 76,682.21 is: 114,794.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,753.44 : 189,751.34 = 76,682.21 : x
  2. Step 2: Convert to fraction form
    126,753.44/189,751.34 = 76,682.21/x
  3. Step 3: Cross multiply
    126,753.44x = 189,751.34 × 76,682.21
  4. Step 4: Simplify right side
    126,753.44x = 14,550,551,344.61
  5. Step 5: Solve for x
    x = 14,550,551,344.61/126,753.44
  6. Step 6: Final answer
    x = 114,794.14

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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.