Home / 204,037.90-305,911.05-91,626.10

Finding the Fourth Proportional to 204,037.90, 305,911.05 and 91,626.10

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Solution

The fourth proportional to 204,037.90, 305,911.05 and 91,626.10 is: 137,373.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,037.90 : 305,911.05 = 91,626.10 : x
  2. Step 2: Convert to fraction form
    204,037.90/305,911.05 = 91,626.10/x
  3. Step 3: Cross multiply
    204,037.90x = 305,911.05 × 91,626.10
  4. Step 4: Simplify right side
    204,037.90x = 28,029,436,458.41
  5. Step 5: Solve for x
    x = 28,029,436,458.41/204,037.90
  6. Step 6: Final answer
    x = 137,373.68

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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.