Home / 115,028.21-158,724.66-66,629.52

Finding the Fourth Proportional to 115,028.21, 158,724.66 and 66,629.52

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Solution

The fourth proportional to 115,028.21, 158,724.66 and 66,629.52 is: 91,940.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,028.21 : 158,724.66 = 66,629.52 : x
  2. Step 2: Convert to fraction form
    115,028.21/158,724.66 = 66,629.52/x
  3. Step 3: Cross multiply
    115,028.21x = 158,724.66 × 66,629.52
  4. Step 4: Simplify right side
    115,028.21x = 10,575,747,907.96
  5. Step 5: Solve for x
    x = 10,575,747,907.96/115,028.21
  6. Step 6: Final answer
    x = 91,940.48

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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.