Home / 136,069.20-204,136.20-57,142.80

Finding the Fourth Proportional to 136,069.20, 204,136.20 and 57,142.80

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Solution

The fourth proportional to 136,069.20, 204,136.20 and 57,142.80 is: 85,727.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,069.20 : 204,136.20 = 57,142.80 : x
  2. Step 2: Convert to fraction form
    136,069.20/204,136.20 = 57,142.80/x
  3. Step 3: Cross multiply
    136,069.20x = 204,136.20 × 57,142.80
  4. Step 4: Simplify right side
    136,069.20x = 11,664,914,049.36
  5. Step 5: Solve for x
    x = 11,664,914,049.36/136,069.20
  6. Step 6: Final answer
    x = 85,727.81

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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.