Home / 200,531.25-276,629.58-135,978.64

Finding the Fourth Proportional to 200,531.25, 276,629.58 and 135,978.64

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Solution

The fourth proportional to 200,531.25, 276,629.58 and 135,978.64 is: 187,580.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,531.25 : 276,629.58 = 135,978.64 : x
  2. Step 2: Convert to fraction form
    200,531.25/276,629.58 = 135,978.64/x
  3. Step 3: Cross multiply
    200,531.25x = 276,629.58 × 135,978.64
  4. Step 4: Simplify right side
    200,531.25x = 37,615,713,380.60
  5. Step 5: Solve for x
    x = 37,615,713,380.60/200,531.25
  6. Step 6: Final answer
    x = 187,580.31

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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.