Home / 203,742.51-281,163.42-113,111.61

Finding the Fourth Proportional to 203,742.51, 281,163.42 and 113,111.61

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Solution

The fourth proportional to 203,742.51, 281,163.42 and 113,111.61 is: 156,093.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,742.51 : 281,163.42 = 113,111.61 : x
  2. Step 2: Convert to fraction form
    203,742.51/281,163.42 = 113,111.61/x
  3. Step 3: Cross multiply
    203,742.51x = 281,163.42 × 113,111.61
  4. Step 4: Simplify right side
    203,742.51x = 31,802,847,109.31
  5. Step 5: Solve for x
    x = 31,802,847,109.31/203,742.51
  6. Step 6: Final answer
    x = 156,093.33

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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.