Home / 132,288.40-198,370-51,273.37

Finding the Fourth Proportional to 132,288.40, 198,370 and 51,273.37

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Solution

The fourth proportional to 132,288.40, 198,370 and 51,273.37 is: 76,885.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,288.40 : 198,370 = 51,273.37 : x
  2. Step 2: Convert to fraction form
    132,288.40/198,370 = 51,273.37/x
  3. Step 3: Cross multiply
    132,288.40x = 198,370 × 51,273.37
  4. Step 4: Simplify right side
    132,288.40x = 10,171,098,406.90
  5. Step 5: Solve for x
    x = 10,171,098,406.90/132,288.40
  6. Step 6: Final answer
    x = 76,885.79

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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.