Home / 69,136.15-103,704.30-19,216.26

Finding the Fourth Proportional to 69,136.15, 103,704.30 and 19,216.26

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Solution

The fourth proportional to 69,136.15, 103,704.30 and 19,216.26 is: 28,824.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,136.15 : 103,704.30 = 19,216.26 : x
  2. Step 2: Convert to fraction form
    69,136.15/103,704.30 = 19,216.26/x
  3. Step 3: Cross multiply
    69,136.15x = 103,704.30 × 19,216.26
  4. Step 4: Simplify right side
    69,136.15x = 1,992,808,791.92
  5. Step 5: Solve for x
    x = 1,992,808,791.92/69,136.15
  6. Step 6: Final answer
    x = 28,824.41

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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.