Home / 99,790.43-149,751.75-54,843.17

Finding the Fourth Proportional to 99,790.43, 149,751.75 and 54,843.17

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Solution

The fourth proportional to 99,790.43, 149,751.75 and 54,843.17 is: 82,301.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,790.43 : 149,751.75 = 54,843.17 : x
  2. Step 2: Convert to fraction form
    99,790.43/149,751.75 = 54,843.17/x
  3. Step 3: Cross multiply
    99,790.43x = 149,751.75 × 54,843.17
  4. Step 4: Simplify right side
    99,790.43x = 8,212,860,683.05
  5. Step 5: Solve for x
    x = 8,212,860,683.05/99,790.43
  6. Step 6: Final answer
    x = 82,301.09

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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.