Home / 161,138.56-241,682.88-82,311.04

Finding the Fourth Proportional to 161,138.56, 241,682.88 and 82,311.04

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Solution

The fourth proportional to 161,138.56, 241,682.88 and 82,311.04 is: 123,453.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,138.56 : 241,682.88 = 82,311.04 : x
  2. Step 2: Convert to fraction form
    161,138.56/241,682.88 = 82,311.04/x
  3. Step 3: Cross multiply
    161,138.56x = 241,682.88 × 82,311.04
  4. Step 4: Simplify right side
    161,138.56x = 19,893,169,203.00
  5. Step 5: Solve for x
    x = 19,893,169,203.00/161,138.56
  6. Step 6: Final answer
    x = 123,453.81

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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.