Home / 137,581.93-206,372.94-90,823.87

Finding the Fourth Proportional to 137,581.93, 206,372.94 and 90,823.87

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Solution

The fourth proportional to 137,581.93, 206,372.94 and 90,823.87 is: 136,235.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,581.93 : 206,372.94 = 90,823.87 : x
  2. Step 2: Convert to fraction form
    137,581.93/206,372.94 = 90,823.87/x
  3. Step 3: Cross multiply
    137,581.93x = 206,372.94 × 90,823.87
  4. Step 4: Simplify right side
    137,581.93x = 18,743,589,074.08
  5. Step 5: Solve for x
    x = 18,743,589,074.08/137,581.93
  6. Step 6: Final answer
    x = 136,235.83

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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.