Home / 203,655.96-281,054.07-135,563.31

Finding the Fourth Proportional to 203,655.96, 281,054.07 and 135,563.31

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Solution

The fourth proportional to 203,655.96, 281,054.07 and 135,563.31 is: 187,083.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,655.96 : 281,054.07 = 135,563.31 : x
  2. Step 2: Convert to fraction form
    203,655.96/281,054.07 = 135,563.31/x
  3. Step 3: Cross multiply
    203,655.96x = 281,054.07 × 135,563.31
  4. Step 4: Simplify right side
    203,655.96x = 38,100,620,018.17
  5. Step 5: Solve for x
    x = 38,100,620,018.17/203,655.96
  6. Step 6: Final answer
    x = 187,083.26

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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.