Home / 132,563.58-198,839.82-90,338.16

Finding the Fourth Proportional to 132,563.58, 198,839.82 and 90,338.16

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Solution

The fourth proportional to 132,563.58, 198,839.82 and 90,338.16 is: 135,503.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,563.58 : 198,839.82 = 90,338.16 : x
  2. Step 2: Convert to fraction form
    132,563.58/198,839.82 = 90,338.16/x
  3. Step 3: Cross multiply
    132,563.58x = 198,839.82 × 90,338.16
  4. Step 4: Simplify right side
    132,563.58x = 17,962,823,473.53
  5. Step 5: Solve for x
    x = 17,962,823,473.53/132,563.58
  6. Step 6: Final answer
    x = 135,503.46

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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.