Home / 215,443.20-323,216.07-108,564.54

Finding the Fourth Proportional to 215,443.20, 323,216.07 and 108,564.54

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Solution

The fourth proportional to 215,443.20, 323,216.07 and 108,564.54 is: 162,872.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,443.20 : 323,216.07 = 108,564.54 : x
  2. Step 2: Convert to fraction form
    215,443.20/323,216.07 = 108,564.54/x
  3. Step 3: Cross multiply
    215,443.20x = 323,216.07 × 108,564.54
  4. Step 4: Simplify right side
    215,443.20x = 35,089,803,960.16
  5. Step 5: Solve for x
    x = 35,089,803,960.16/215,443.20
  6. Step 6: Final answer
    x = 162,872.65

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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.