Home / 99,666.62-149,352.30-82,022.58

Finding the Fourth Proportional to 99,666.62, 149,352.30 and 82,022.58

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Solution

The fourth proportional to 99,666.62, 149,352.30 and 82,022.58 is: 122,912.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,666.62 : 149,352.30 = 82,022.58 : x
  2. Step 2: Convert to fraction form
    99,666.62/149,352.30 = 82,022.58/x
  3. Step 3: Cross multiply
    99,666.62x = 149,352.30 × 82,022.58
  4. Step 4: Simplify right side
    99,666.62x = 12,250,260,974.93
  5. Step 5: Solve for x
    x = 12,250,260,974.93/99,666.62
  6. Step 6: Final answer
    x = 122,912.38

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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.