Home / 72,136.09-108,204.68-22,216.60

Finding the Fourth Proportional to 72,136.09, 108,204.68 and 22,216.60

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Solution

The fourth proportional to 72,136.09, 108,204.68 and 22,216.60 is: 33,325.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,136.09 : 108,204.68 = 22,216.60 : x
  2. Step 2: Convert to fraction form
    72,136.09/108,204.68 = 22,216.60/x
  3. Step 3: Cross multiply
    72,136.09x = 108,204.68 × 22,216.60
  4. Step 4: Simplify right side
    72,136.09x = 2,403,940,093.69
  5. Step 5: Solve for x
    x = 2,403,940,093.69/72,136.09
  6. Step 6: Final answer
    x = 33,325.07

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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.