Home / 147,619.62-203,645.94-87,149.04

Finding the Fourth Proportional to 147,619.62, 203,645.94 and 87,149.04

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Solution

The fourth proportional to 147,619.62, 203,645.94 and 87,149.04 is: 120,224.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,619.62 : 203,645.94 = 87,149.04 : x
  2. Step 2: Convert to fraction form
    147,619.62/203,645.94 = 87,149.04/x
  3. Step 3: Cross multiply
    147,619.62x = 203,645.94 × 87,149.04
  4. Step 4: Simplify right side
    147,619.62x = 17,747,548,170.90
  5. Step 5: Solve for x
    x = 17,747,548,170.90/147,619.62
  6. Step 6: Final answer
    x = 120,224.86

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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.