Home / 203,682.39-281,081.32-113,039.45

Finding the Fourth Proportional to 203,682.39, 281,081.32 and 113,039.45

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Solution

The fourth proportional to 203,682.39, 281,081.32 and 113,039.45 is: 155,994.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,682.39 : 281,081.32 = 113,039.45 : x
  2. Step 2: Convert to fraction form
    203,682.39/281,081.32 = 113,039.45/x
  3. Step 3: Cross multiply
    203,682.39x = 281,081.32 × 113,039.45
  4. Step 4: Simplify right side
    203,682.39x = 31,773,276,412.67
  5. Step 5: Solve for x
    x = 31,773,276,412.67/203,682.39
  6. Step 6: Final answer
    x = 155,994.22

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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.