Home / 143,834.40-215,665.20-73,850.40

Finding the Fourth Proportional to 143,834.40, 215,665.20 and 73,850.40

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Solution

The fourth proportional to 143,834.40, 215,665.20 and 73,850.40 is: 110,731.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,834.40 : 215,665.20 = 73,850.40 : x
  2. Step 2: Convert to fraction form
    143,834.40/215,665.20 = 73,850.40/x
  3. Step 3: Cross multiply
    143,834.40x = 215,665.20 × 73,850.40
  4. Step 4: Simplify right side
    143,834.40x = 15,926,961,286.08
  5. Step 5: Solve for x
    x = 15,926,961,286.08/143,834.40
  6. Step 6: Final answer
    x = 110,731.24

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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.