Home / 132,562.20-198,843.30-90,571.80

Finding the Fourth Proportional to 132,562.20, 198,843.30 and 90,571.80

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Solution

The fourth proportional to 132,562.20, 198,843.30 and 90,571.80 is: 135,857.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,562.20 : 198,843.30 = 90,571.80 : x
  2. Step 2: Convert to fraction form
    132,562.20/198,843.30 = 90,571.80/x
  3. Step 3: Cross multiply
    132,562.20x = 198,843.30 × 90,571.80
  4. Step 4: Simplify right side
    132,562.20x = 18,009,595,598.94
  5. Step 5: Solve for x
    x = 18,009,595,598.94/132,562.20
  6. Step 6: Final answer
    x = 135,857.70

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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.