Home / 143,944.20-215,943.98-55,190.78

Finding the Fourth Proportional to 143,944.20, 215,943.98 and 55,190.78

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Solution

The fourth proportional to 143,944.20, 215,943.98 and 55,190.78 is: 82,796.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,944.20 : 215,943.98 = 55,190.78 : x
  2. Step 2: Convert to fraction form
    143,944.20/215,943.98 = 55,190.78/x
  3. Step 3: Cross multiply
    143,944.20x = 215,943.98 × 55,190.78
  4. Step 4: Simplify right side
    143,944.20x = 11,918,116,956.41
  5. Step 5: Solve for x
    x = 11,918,116,956.41/143,944.20
  6. Step 6: Final answer
    x = 82,796.78

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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.