Home / 149,028.66-205,663.41-81,049.86

Finding the Fourth Proportional to 149,028.66, 205,663.41 and 81,049.86

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Solution

The fourth proportional to 149,028.66, 205,663.41 and 81,049.86 is: 111,850.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,028.66 : 205,663.41 = 81,049.86 : x
  2. Step 2: Convert to fraction form
    149,028.66/205,663.41 = 81,049.86/x
  3. Step 3: Cross multiply
    149,028.66x = 205,663.41 × 81,049.86
  4. Step 4: Simplify right side
    149,028.66x = 16,668,990,587.62
  5. Step 5: Solve for x
    x = 16,668,990,587.62/149,028.66
  6. Step 6: Final answer
    x = 111,850.91

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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.