Home / 198,618.53-297,833.88-72,170.65

Finding the Fourth Proportional to 198,618.53, 297,833.88 and 72,170.65

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Solution

The fourth proportional to 198,618.53, 297,833.88 and 72,170.65 is: 108,221.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,618.53 : 297,833.88 = 72,170.65 : x
  2. Step 2: Convert to fraction form
    198,618.53/297,833.88 = 72,170.65/x
  3. Step 3: Cross multiply
    198,618.53x = 297,833.88 × 72,170.65
  4. Step 4: Simplify right side
    198,618.53x = 21,494,863,222.45
  5. Step 5: Solve for x
    x = 21,494,863,222.45/198,618.53
  6. Step 6: Final answer
    x = 108,221.84

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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.