Home / 103,272.24-142,504.11-57,940.80

Finding the Fourth Proportional to 103,272.24, 142,504.11 and 57,940.80

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Solution

The fourth proportional to 103,272.24, 142,504.11 and 57,940.80 is: 79,951.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,272.24 : 142,504.11 = 57,940.80 : x
  2. Step 2: Convert to fraction form
    103,272.24/142,504.11 = 57,940.80/x
  3. Step 3: Cross multiply
    103,272.24x = 142,504.11 × 57,940.80
  4. Step 4: Simplify right side
    103,272.24x = 8,256,802,136.69
  5. Step 5: Solve for x
    x = 8,256,802,136.69/103,272.24
  6. Step 6: Final answer
    x = 79,951.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.