Home / 121,764.24-168,033.96-68,049.36

Finding the Fourth Proportional to 121,764.24, 168,033.96 and 68,049.36

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Solution

The fourth proportional to 121,764.24, 168,033.96 and 68,049.36 is: 93,907.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,764.24 : 168,033.96 = 68,049.36 : x
  2. Step 2: Convert to fraction form
    121,764.24/168,033.96 = 68,049.36/x
  3. Step 3: Cross multiply
    121,764.24x = 168,033.96 × 68,049.36
  4. Step 4: Simplify right side
    121,764.24x = 11,434,603,436.27
  5. Step 5: Solve for x
    x = 11,434,603,436.27/121,764.24
  6. Step 6: Final answer
    x = 93,907.73

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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.