Home / 198,176.12-297,263.37-71,786.79

Finding the Fourth Proportional to 198,176.12, 297,263.37 and 71,786.79

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Solution

The fourth proportional to 198,176.12, 297,263.37 and 71,786.79 is: 107,679.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,176.12 : 297,263.37 = 71,786.79 : x
  2. Step 2: Convert to fraction form
    198,176.12/297,263.37 = 71,786.79/x
  3. Step 3: Cross multiply
    198,176.12x = 297,263.37 × 71,786.79
  4. Step 4: Simplify right side
    198,176.12x = 21,339,583,116.88
  5. Step 5: Solve for x
    x = 21,339,583,116.88/198,176.12
  6. Step 6: Final answer
    x = 107,679.89

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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.