Home / 204,089.40-281,536.43-138,654.86

Finding the Fourth Proportional to 204,089.40, 281,536.43 and 138,654.86

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Solution

The fourth proportional to 204,089.40, 281,536.43 and 138,654.86 is: 191,271.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,089.40 : 281,536.43 = 138,654.86 : x
  2. Step 2: Convert to fraction form
    204,089.40/281,536.43 = 138,654.86/x
  3. Step 3: Cross multiply
    204,089.40x = 281,536.43 × 138,654.86
  4. Step 4: Simplify right side
    204,089.40x = 39,036,392,185.59
  5. Step 5: Solve for x
    x = 39,036,392,185.59/204,089.40
  6. Step 6: Final answer
    x = 191,271.04

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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.