Home / 132,359.20-198,538.80-109,808.80

Finding the Fourth Proportional to 132,359.20, 198,538.80 and 109,808.80

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Solution

The fourth proportional to 132,359.20, 198,538.80 and 109,808.80 is: 164,713.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,359.20 : 198,538.80 = 109,808.80 : x
  2. Step 2: Convert to fraction form
    132,359.20/198,538.80 = 109,808.80/x
  3. Step 3: Cross multiply
    132,359.20x = 198,538.80 × 109,808.80
  4. Step 4: Simplify right side
    132,359.20x = 21,801,307,381.44
  5. Step 5: Solve for x
    x = 21,801,307,381.44/132,359.20
  6. Step 6: Final answer
    x = 164,713.20

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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.