Home / 198,947.34-298,421.01-65,791.85

Finding the Fourth Proportional to 198,947.34, 298,421.01 and 65,791.85

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Solution

The fourth proportional to 198,947.34, 298,421.01 and 65,791.85 is: 98,687.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,947.34 : 298,421.01 = 65,791.85 : x
  2. Step 2: Convert to fraction form
    198,947.34/298,421.01 = 65,791.85/x
  3. Step 3: Cross multiply
    198,947.34x = 298,421.01 × 65,791.85
  4. Step 4: Simplify right side
    198,947.34x = 19,633,668,834.66
  5. Step 5: Solve for x
    x = 19,633,668,834.66/198,947.34
  6. Step 6: Final answer
    x = 98,687.77

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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.