Home / 126,644.40-189,942.30-37,900.80

Finding the Fourth Proportional to 126,644.40, 189,942.30 and 37,900.80

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Solution

The fourth proportional to 126,644.40, 189,942.30 and 37,900.80 is: 56,843.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,644.40 : 189,942.30 = 37,900.80 : x
  2. Step 2: Convert to fraction form
    126,644.40/189,942.30 = 37,900.80/x
  3. Step 3: Cross multiply
    126,644.40x = 189,942.30 × 37,900.80
  4. Step 4: Simplify right side
    126,644.40x = 7,198,965,123.84
  5. Step 5: Solve for x
    x = 7,198,965,123.84/126,644.40
  6. Step 6: Final answer
    x = 56,843.93

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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.