Home / 218,584.56-301,640.78-123,089.20

Finding the Fourth Proportional to 218,584.56, 301,640.78 and 123,089.20

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Solution

The fourth proportional to 218,584.56, 301,640.78 and 123,089.20 is: 169,859.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,584.56 : 301,640.78 = 123,089.20 : x
  2. Step 2: Convert to fraction form
    218,584.56/301,640.78 = 123,089.20/x
  3. Step 3: Cross multiply
    218,584.56x = 301,640.78 × 123,089.20
  4. Step 4: Simplify right side
    218,584.56x = 37,128,722,297.58
  5. Step 5: Solve for x
    x = 37,128,722,297.58/218,584.56
  6. Step 6: Final answer
    x = 169,859.77

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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.