Home / 198,933.65-298,291.41-78,868.97

Finding the Fourth Proportional to 198,933.65, 298,291.41 and 78,868.97

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Solution

The fourth proportional to 198,933.65, 298,291.41 and 78,868.97 is: 118,260.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,933.65 : 298,291.41 = 78,868.97 : x
  2. Step 2: Convert to fraction form
    198,933.65/298,291.41 = 78,868.97/x
  3. Step 3: Cross multiply
    198,933.65x = 298,291.41 × 78,868.97
  4. Step 4: Simplify right side
    198,933.65x = 23,525,935,893.68
  5. Step 5: Solve for x
    x = 23,525,935,893.68/198,933.65
  6. Step 6: Final answer
    x = 118,260.21

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1.5x scale

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.