Home / 129,976.09-194,964.15-36,479.41

Finding the Fourth Proportional to 129,976.09, 194,964.15 and 36,479.41

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Solution

The fourth proportional to 129,976.09, 194,964.15 and 36,479.41 is: 54,719.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,976.09 : 194,964.15 = 36,479.41 : x
  2. Step 2: Convert to fraction form
    129,976.09/194,964.15 = 36,479.41/x
  3. Step 3: Cross multiply
    129,976.09x = 194,964.15 × 36,479.41
  4. Step 4: Simplify right side
    129,976.09x = 7,112,177,163.15
  5. Step 5: Solve for x
    x = 7,112,177,163.15/129,976.09
  6. Step 6: Final answer
    x = 54,719.12

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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.