Home / 129,766.53-179,043.91-76,022.65

Finding the Fourth Proportional to 129,766.53, 179,043.91 and 76,022.65

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Solution

The fourth proportional to 129,766.53, 179,043.91 and 76,022.65 is: 104,891.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,766.53 : 179,043.91 = 76,022.65 : x
  2. Step 2: Convert to fraction form
    129,766.53/179,043.91 = 76,022.65/x
  3. Step 3: Cross multiply
    129,766.53x = 179,043.91 × 76,022.65
  4. Step 4: Simplify right side
    129,766.53x = 13,611,392,504.56
  5. Step 5: Solve for x
    x = 13,611,392,504.56/129,766.53
  6. Step 6: Final answer
    x = 104,891.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.