Home / 143,640.03-215,558.46-50,145.78

Finding the Fourth Proportional to 143,640.03, 215,558.46 and 50,145.78

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Solution

The fourth proportional to 143,640.03, 215,558.46 and 50,145.78 is: 75,253.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,640.03 : 215,558.46 = 50,145.78 : x
  2. Step 2: Convert to fraction form
    143,640.03/215,558.46 = 50,145.78/x
  3. Step 3: Cross multiply
    143,640.03x = 215,558.46 × 50,145.78
  4. Step 4: Simplify right side
    143,640.03x = 10,809,347,112.30
  5. Step 5: Solve for x
    x = 10,809,347,112.30/143,640.03
  6. Step 6: Final answer
    x = 75,253.03

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1.5x scale

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.