Home / 91,723.20-137,584.80-82,537.80

Finding the Fourth Proportional to 91,723.20, 137,584.80 and 82,537.80

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Solution

The fourth proportional to 91,723.20, 137,584.80 and 82,537.80 is: 123,806.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,723.20 : 137,584.80 = 82,537.80 : x
  2. Step 2: Convert to fraction form
    91,723.20/137,584.80 = 82,537.80/x
  3. Step 3: Cross multiply
    91,723.20x = 137,584.80 × 82,537.80
  4. Step 4: Simplify right side
    91,723.20x = 11,355,946,705.44
  5. Step 5: Solve for x
    x = 11,355,946,705.44/91,723.20
  6. Step 6: Final answer
    x = 123,806.70

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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.