Home / 135,619.68-203,406.30-35,780.91

Finding the Fourth Proportional to 135,619.68, 203,406.30 and 35,780.91

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Solution

The fourth proportional to 135,619.68, 203,406.30 and 35,780.91 is: 53,665.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,619.68 : 203,406.30 = 35,780.91 : x
  2. Step 2: Convert to fraction form
    135,619.68/203,406.30 = 35,780.91/x
  3. Step 3: Cross multiply
    135,619.68x = 203,406.30 × 35,780.91
  4. Step 4: Simplify right side
    135,619.68x = 7,278,062,513.73
  5. Step 5: Solve for x
    x = 7,278,062,513.73/135,619.68
  6. Step 6: Final answer
    x = 53,665.24

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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.