Home / 115,861.08-173,805.84-40,965.72

Finding the Fourth Proportional to 115,861.08, 173,805.84 and 40,965.72

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Solution

The fourth proportional to 115,861.08, 173,805.84 and 40,965.72 is: 61,453.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,861.08 : 173,805.84 = 40,965.72 : x
  2. Step 2: Convert to fraction form
    115,861.08/173,805.84 = 40,965.72/x
  3. Step 3: Cross multiply
    115,861.08x = 173,805.84 × 40,965.72
  4. Step 4: Simplify right side
    115,861.08x = 7,120,081,375.80
  5. Step 5: Solve for x
    x = 7,120,081,375.80/115,861.08
  6. Step 6: Final answer
    x = 61,453.61

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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.