Home / 126,278.44-174,257.46-78,530.44

Finding the Fourth Proportional to 126,278.44, 174,257.46 and 78,530.44

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Solution

The fourth proportional to 126,278.44, 174,257.46 and 78,530.44 is: 108,367.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,278.44 : 174,257.46 = 78,530.44 : x
  2. Step 2: Convert to fraction form
    126,278.44/174,257.46 = 78,530.44/x
  3. Step 3: Cross multiply
    126,278.44x = 174,257.46 × 78,530.44
  4. Step 4: Simplify right side
    126,278.44x = 13,684,515,007.08
  5. Step 5: Solve for x
    x = 13,684,515,007.08/126,278.44
  6. Step 6: Final answer
    x = 108,367.79

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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.