Home / 82,218.24-122,975.82-68,626.71

Finding the Fourth Proportional to 82,218.24, 122,975.82 and 68,626.71

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Solution

The fourth proportional to 82,218.24, 122,975.82 and 68,626.71 is: 102,646.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,218.24 : 122,975.82 = 68,626.71 : x
  2. Step 2: Convert to fraction form
    82,218.24/122,975.82 = 68,626.71/x
  3. Step 3: Cross multiply
    82,218.24x = 122,975.82 × 68,626.71
  4. Step 4: Simplify right side
    82,218.24x = 8,439,425,936.15
  5. Step 5: Solve for x
    x = 8,439,425,936.15/82,218.24
  6. Step 6: Final answer
    x = 102,646.64

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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.