Home / 325,118.21-487,550.95-111,845.61

Finding the Fourth Proportional to 325,118.21, 487,550.95 and 111,845.61

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Solution

The fourth proportional to 325,118.21, 487,550.95 and 111,845.61 is: 167,724.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,118.21 : 487,550.95 = 111,845.61 : x
  2. Step 2: Convert to fraction form
    325,118.21/487,550.95 = 111,845.61/x
  3. Step 3: Cross multiply
    325,118.21x = 487,550.95 × 111,845.61
  4. Step 4: Simplify right side
    325,118.21x = 54,530,433,129.22
  5. Step 5: Solve for x
    x = 54,530,433,129.22/325,118.21
  6. Step 6: Final answer
    x = 167,724.95

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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.