Home / 267,629.96-401,445.65-90,261.56

Finding the Fourth Proportional to 267,629.96, 401,445.65 and 90,261.56

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Solution

The fourth proportional to 267,629.96, 401,445.65 and 90,261.56 is: 135,392.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,629.96 : 401,445.65 = 90,261.56 : x
  2. Step 2: Convert to fraction form
    267,629.96/401,445.65 = 90,261.56/x
  3. Step 3: Cross multiply
    267,629.96x = 401,445.65 × 90,261.56
  4. Step 4: Simplify right side
    267,629.96x = 36,235,111,853.48
  5. Step 5: Solve for x
    x = 36,235,111,853.48/267,629.96
  6. Step 6: Final answer
    x = 135,392.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.