Home / 109,279.64-150,793.44-61,531.76

Finding the Fourth Proportional to 109,279.64, 150,793.44 and 61,531.76

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Solution

The fourth proportional to 109,279.64, 150,793.44 and 61,531.76 is: 84,906.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,279.64 : 150,793.44 = 61,531.76 : x
  2. Step 2: Convert to fraction form
    109,279.64/150,793.44 = 61,531.76/x
  3. Step 3: Cross multiply
    109,279.64x = 150,793.44 × 61,531.76
  4. Step 4: Simplify right side
    109,279.64x = 9,278,585,759.65
  5. Step 5: Solve for x
    x = 9,278,585,759.65/109,279.64
  6. Step 6: Final answer
    x = 84,906.81

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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.