Home / 115,160.41-158,922-66,791.01

Finding the Fourth Proportional to 115,160.41, 158,922 and 66,791.01

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Solution

The fourth proportional to 115,160.41, 158,922 and 66,791.01 is: 92,171.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,160.41 : 158,922 = 66,791.01 : x
  2. Step 2: Convert to fraction form
    115,160.41/158,922 = 66,791.01/x
  3. Step 3: Cross multiply
    115,160.41x = 158,922 × 66,791.01
  4. Step 4: Simplify right side
    115,160.41x = 10,614,560,593.24
  5. Step 5: Solve for x
    x = 10,614,560,593.24/115,160.41
  6. Step 6: Final answer
    x = 92,171.96

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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.