Home / 198,231.18-297,405.09-79,841.58

Finding the Fourth Proportional to 198,231.18, 297,405.09 and 79,841.58

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Solution

The fourth proportional to 198,231.18, 297,405.09 and 79,841.58 is: 119,785.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,231.18 : 297,405.09 = 79,841.58 : x
  2. Step 2: Convert to fraction form
    198,231.18/297,405.09 = 79,841.58/x
  3. Step 3: Cross multiply
    198,231.18x = 297,405.09 × 79,841.58
  4. Step 4: Simplify right side
    198,231.18x = 23,745,292,285.64
  5. Step 5: Solve for x
    x = 23,745,292,285.64/198,231.18
  6. Step 6: Final answer
    x = 119,785.86

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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.