Home / 107,378.80-161,131.52-40,874.88

Finding the Fourth Proportional to 107,378.80, 161,131.52 and 40,874.88

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Solution

The fourth proportional to 107,378.80, 161,131.52 and 40,874.88 is: 61,336.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,378.80 : 161,131.52 = 40,874.88 : x
  2. Step 2: Convert to fraction form
    107,378.80/161,131.52 = 40,874.88/x
  3. Step 3: Cross multiply
    107,378.80x = 161,131.52 × 40,874.88
  4. Step 4: Simplify right side
    107,378.80x = 6,586,231,544.22
  5. Step 5: Solve for x
    x = 6,586,231,544.22/107,378.80
  6. Step 6: Final answer
    x = 61,336.42

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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.