Home / 198,517.84-297,609.24-86,113.36

Finding the Fourth Proportional to 198,517.84, 297,609.24 and 86,113.36

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Solution

The fourth proportional to 198,517.84, 297,609.24 and 86,113.36 is: 129,097.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,517.84 : 297,609.24 = 86,113.36 : x
  2. Step 2: Convert to fraction form
    198,517.84/297,609.24 = 86,113.36/x
  3. Step 3: Cross multiply
    198,517.84x = 297,609.24 × 86,113.36
  4. Step 4: Simplify right side
    198,517.84x = 25,628,131,623.45
  5. Step 5: Solve for x
    x = 25,628,131,623.45/198,517.84
  6. Step 6: Final answer
    x = 129,097.37

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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.