Home / 203,686.36-281,120.96-118,803.42

Finding the Fourth Proportional to 203,686.36, 281,120.96 and 118,803.42

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Solution

The fourth proportional to 203,686.36, 281,120.96 and 118,803.42 is: 163,968.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,686.36 : 281,120.96 = 118,803.42 : x
  2. Step 2: Convert to fraction form
    203,686.36/281,120.96 = 118,803.42/x
  3. Step 3: Cross multiply
    203,686.36x = 281,120.96 × 118,803.42
  4. Step 4: Simplify right side
    203,686.36x = 33,398,131,778.69
  5. Step 5: Solve for x
    x = 33,398,131,778.69/203,686.36
  6. Step 6: Final answer
    x = 163,968.43

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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.