Home / 143,388.27-215,121.68-43,551.72

Finding the Fourth Proportional to 143,388.27, 215,121.68 and 43,551.72

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Solution

The fourth proportional to 143,388.27, 215,121.68 and 43,551.72 is: 65,339.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,388.27 : 215,121.68 = 43,551.72 : x
  2. Step 2: Convert to fraction form
    143,388.27/215,121.68 = 43,551.72/x
  3. Step 3: Cross multiply
    143,388.27x = 215,121.68 × 43,551.72
  4. Step 4: Simplify right side
    143,388.27x = 9,368,919,173.29
  5. Step 5: Solve for x
    x = 9,368,919,173.29/143,388.27
  6. Step 6: Final answer
    x = 65,339.51

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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.