Home / 198,741.40-297,723.30-119,620.60

Finding the Fourth Proportional to 198,741.40, 297,723.30 and 119,620.60

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Solution

The fourth proportional to 198,741.40, 297,723.30 and 119,620.60 is: 179,196.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,741.40 : 297,723.30 = 119,620.60 : x
  2. Step 2: Convert to fraction form
    198,741.40/297,723.30 = 119,620.60/x
  3. Step 3: Cross multiply
    198,741.40x = 297,723.30 × 119,620.60
  4. Step 4: Simplify right side
    198,741.40x = 35,613,839,779.98
  5. Step 5: Solve for x
    x = 35,613,839,779.98/198,741.40
  6. Step 6: Final answer
    x = 179,196.88

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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.