Home / 143,909.28-215,740.83-55,226.43

Finding the Fourth Proportional to 143,909.28, 215,740.83 and 55,226.43

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Solution

The fourth proportional to 143,909.28, 215,740.83 and 55,226.43 is: 82,792.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,909.28 : 215,740.83 = 55,226.43 : x
  2. Step 2: Convert to fraction form
    143,909.28/215,740.83 = 55,226.43/x
  3. Step 3: Cross multiply
    143,909.28x = 215,740.83 × 55,226.43
  4. Step 4: Simplify right side
    143,909.28x = 11,914,595,846.14
  5. Step 5: Solve for x
    x = 11,914,595,846.14/143,909.28
  6. Step 6: Final answer
    x = 82,792.41

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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.