Home / 126,190.76-189,099.14-51,219.68

Finding the Fourth Proportional to 126,190.76, 189,099.14 and 51,219.68

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Solution

The fourth proportional to 126,190.76, 189,099.14 and 51,219.68 is: 76,753.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,190.76 : 189,099.14 = 51,219.68 : x
  2. Step 2: Convert to fraction form
    126,190.76/189,099.14 = 51,219.68/x
  3. Step 3: Cross multiply
    126,190.76x = 189,099.14 × 51,219.68
  4. Step 4: Simplify right side
    126,190.76x = 9,685,596,237.48
  5. Step 5: Solve for x
    x = 9,685,596,237.48/126,190.76
  6. Step 6: Final answer
    x = 76,753.61

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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.