Home / 126,122.43-189,178.17-31,350.60

Finding the Fourth Proportional to 126,122.43, 189,178.17 and 31,350.60

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Solution

The fourth proportional to 126,122.43, 189,178.17 and 31,350.60 is: 47,024.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,122.43 : 189,178.17 = 31,350.60 : x
  2. Step 2: Convert to fraction form
    126,122.43/189,178.17 = 31,350.60/x
  3. Step 3: Cross multiply
    126,122.43x = 189,178.17 × 31,350.60
  4. Step 4: Simplify right side
    126,122.43x = 5,930,849,136.40
  5. Step 5: Solve for x
    x = 5,930,849,136.40/126,122.43
  6. Step 6: Final answer
    x = 47,024.54

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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.