Home / 132,908.07-199,136.43-80,206.82

Finding the Fourth Proportional to 132,908.07, 199,136.43 and 80,206.82

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Solution

The fourth proportional to 132,908.07, 199,136.43 and 80,206.82 is: 120,174.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,908.07 : 199,136.43 = 80,206.82 : x
  2. Step 2: Convert to fraction form
    132,908.07/199,136.43 = 80,206.82/x
  3. Step 3: Cross multiply
    132,908.07x = 199,136.43 × 80,206.82
  4. Step 4: Simplify right side
    132,908.07x = 15,972,099,796.45
  5. Step 5: Solve for x
    x = 15,972,099,796.45/132,908.07
  6. Step 6: Final answer
    x = 120,174.04

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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.