Home / 82,110.36-123,253.02-79,136.04

Finding the Fourth Proportional to 82,110.36, 123,253.02 and 79,136.04

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Solution

The fourth proportional to 82,110.36, 123,253.02 and 79,136.04 is: 118,788.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,110.36 : 123,253.02 = 79,136.04 : x
  2. Step 2: Convert to fraction form
    82,110.36/123,253.02 = 79,136.04/x
  3. Step 3: Cross multiply
    82,110.36x = 123,253.02 × 79,136.04
  4. Step 4: Simplify right side
    82,110.36x = 9,753,755,920.84
  5. Step 5: Solve for x
    x = 9,753,755,920.84/82,110.36
  6. Step 6: Final answer
    x = 118,788.37

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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.