Home / 203,712.96-281,126.88-113,074.80

Finding the Fourth Proportional to 203,712.96, 281,126.88 and 113,074.80

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Solution

The fourth proportional to 203,712.96, 281,126.88 and 113,074.80 is: 156,044.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,712.96 : 281,126.88 = 113,074.80 : x
  2. Step 2: Convert to fraction form
    203,712.96/281,126.88 = 113,074.80/x
  3. Step 3: Cross multiply
    203,712.96x = 281,126.88 × 113,074.80
  4. Step 4: Simplify right side
    203,712.96x = 31,788,365,730.62
  5. Step 5: Solve for x
    x = 31,788,365,730.62/203,712.96
  6. Step 6: Final answer
    x = 156,044.89

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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.