Home / 198,942.14-298,410.48-86,619.95

Finding the Fourth Proportional to 198,942.14, 298,410.48 and 86,619.95

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Solution

The fourth proportional to 198,942.14, 298,410.48 and 86,619.95 is: 129,928.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,942.14 : 298,410.48 = 86,619.95 : x
  2. Step 2: Convert to fraction form
    198,942.14/298,410.48 = 86,619.95/x
  3. Step 3: Cross multiply
    198,942.14x = 298,410.48 × 86,619.95
  4. Step 4: Simplify right side
    198,942.14x = 25,848,300,484.06
  5. Step 5: Solve for x
    x = 25,848,300,484.06/198,942.14
  6. Step 6: Final answer
    x = 129,928.73

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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.