Home / 205,136.20-307,704.30-135,094.60

Finding the Fourth Proportional to 205,136.20, 307,704.30 and 135,094.60

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Solution

The fourth proportional to 205,136.20, 307,704.30 and 135,094.60 is: 202,641.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,136.20 : 307,704.30 = 135,094.60 : x
  2. Step 2: Convert to fraction form
    205,136.20/307,704.30 = 135,094.60/x
  3. Step 3: Cross multiply
    205,136.20x = 307,704.30 × 135,094.60
  4. Step 4: Simplify right side
    205,136.20x = 41,569,189,326.78
  5. Step 5: Solve for x
    x = 41,569,189,326.78/205,136.20
  6. Step 6: Final answer
    x = 202,641.90

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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.