Home / 146,049.09-218,979.41-57,311.57

Finding the Fourth Proportional to 146,049.09, 218,979.41 and 57,311.57

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Solution

The fourth proportional to 146,049.09, 218,979.41 and 57,311.57 is: 85,930.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,049.09 : 218,979.41 = 57,311.57 : x
  2. Step 2: Convert to fraction form
    146,049.09/218,979.41 = 57,311.57/x
  3. Step 3: Cross multiply
    146,049.09x = 218,979.41 × 57,311.57
  4. Step 4: Simplify right side
    146,049.09x = 12,550,052,403.32
  5. Step 5: Solve for x
    x = 12,550,052,403.32/146,049.09
  6. Step 6: Final answer
    x = 85,930.37

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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.