Home / 203,890.40-305,834.04-83,946.56

Finding the Fourth Proportional to 203,890.40, 305,834.04 and 83,946.56

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Solution

The fourth proportional to 203,890.40, 305,834.04 and 83,946.56 is: 125,919.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,890.40 : 305,834.04 = 83,946.56 : x
  2. Step 2: Convert to fraction form
    203,890.40/305,834.04 = 83,946.56/x
  3. Step 3: Cross multiply
    203,890.40x = 305,834.04 × 83,946.56
  4. Step 4: Simplify right side
    203,890.40x = 25,673,715,588.90
  5. Step 5: Solve for x
    x = 25,673,715,588.90/203,890.40
  6. Step 6: Final answer
    x = 125,919.20

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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.