Home / 115,218.11-159,003.91-64,239.14

Finding the Fourth Proportional to 115,218.11, 159,003.91 and 64,239.14

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Solution

The fourth proportional to 115,218.11, 159,003.91 and 64,239.14 is: 88,651.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,218.11 : 159,003.91 = 64,239.14 : x
  2. Step 2: Convert to fraction form
    115,218.11/159,003.91 = 64,239.14/x
  3. Step 3: Cross multiply
    115,218.11x = 159,003.91 × 64,239.14
  4. Step 4: Simplify right side
    115,218.11x = 10,214,274,912.85
  5. Step 5: Solve for x
    x = 10,214,274,912.85/115,218.11
  6. Step 6: Final answer
    x = 88,651.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.