Home / 215,996.30-324,139.07-89,636.66

Finding the Fourth Proportional to 215,996.30, 324,139.07 and 89,636.66

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Solution

The fourth proportional to 215,996.30, 324,139.07 and 89,636.66 is: 134,515.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,996.30 : 324,139.07 = 89,636.66 : x
  2. Step 2: Convert to fraction form
    215,996.30/324,139.07 = 89,636.66/x
  3. Step 3: Cross multiply
    215,996.30x = 324,139.07 × 89,636.66
  4. Step 4: Simplify right side
    215,996.30x = 29,054,743,610.31
  5. Step 5: Solve for x
    x = 29,054,743,610.31/215,996.30
  6. Step 6: Final answer
    x = 134,515.01

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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.