Home / 126,038.44-189,136.48-51,158.56

Finding the Fourth Proportional to 126,038.44, 189,136.48 and 51,158.56

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Solution

The fourth proportional to 126,038.44, 189,136.48 and 51,158.56 is: 76,769.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,038.44 : 189,136.48 = 51,158.56 : x
  2. Step 2: Convert to fraction form
    126,038.44/189,136.48 = 51,158.56/x
  3. Step 3: Cross multiply
    126,038.44x = 189,136.48 × 51,158.56
  4. Step 4: Simplify right side
    126,038.44x = 9,675,949,960.27
  5. Step 5: Solve for x
    x = 9,675,949,960.27/126,038.44
  6. Step 6: Final answer
    x = 76,769.83

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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.