Home / 203,786.30-281,228.40-113,148.11

Finding the Fourth Proportional to 203,786.30, 281,228.40 and 113,148.11

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Solution

The fourth proportional to 203,786.30, 281,228.40 and 113,148.11 is: 156,146.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,786.30 : 281,228.40 = 113,148.11 : x
  2. Step 2: Convert to fraction form
    203,786.30/281,228.40 = 113,148.11/x
  3. Step 3: Cross multiply
    203,786.30x = 281,228.40 × 113,148.11
  4. Step 4: Simplify right side
    203,786.30x = 31,820,460,532.18
  5. Step 5: Solve for x
    x = 31,820,460,532.18/203,786.30
  6. Step 6: Final answer
    x = 156,146.22

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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.