Home / 115,198.56-158,965.92-63,513.36

Finding the Fourth Proportional to 115,198.56, 158,965.92 and 63,513.36

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Solution

The fourth proportional to 115,198.56, 158,965.92 and 63,513.36 is: 87,643.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,198.56 : 158,965.92 = 63,513.36 : x
  2. Step 2: Convert to fraction form
    115,198.56/158,965.92 = 63,513.36/x
  3. Step 3: Cross multiply
    115,198.56x = 158,965.92 × 63,513.36
  4. Step 4: Simplify right side
    115,198.56x = 10,096,459,704.69
  5. Step 5: Solve for x
    x = 10,096,459,704.69/115,198.56
  6. Step 6: Final answer
    x = 87,643.97

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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.