Home / 143,630.03-215,543.46-50,135.78

Finding the Fourth Proportional to 143,630.03, 215,543.46 and 50,135.78

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Solution

The fourth proportional to 143,630.03, 215,543.46 and 50,135.78 is: 75,238.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,630.03 : 215,543.46 = 50,135.78 : x
  2. Step 2: Convert to fraction form
    143,630.03/215,543.46 = 50,135.78/x
  3. Step 3: Cross multiply
    143,630.03x = 215,543.46 × 50,135.78
  4. Step 4: Simplify right side
    143,630.03x = 10,806,439,491.00
  5. Step 5: Solve for x
    x = 10,806,439,491.00/143,630.03
  6. Step 6: Final answer
    x = 75,238.02

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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.