Home / 129,534.21-194,327.51-54,654.51

Finding the Fourth Proportional to 129,534.21, 194,327.51 and 54,654.51

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Solution

The fourth proportional to 129,534.21, 194,327.51 and 54,654.51 is: 81,992.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,534.21 : 194,327.51 = 54,654.51 : x
  2. Step 2: Convert to fraction form
    129,534.21/194,327.51 = 54,654.51/x
  3. Step 3: Cross multiply
    129,534.21x = 194,327.51 × 54,654.51
  4. Step 4: Simplify right side
    129,534.21x = 10,620,874,565.30
  5. Step 5: Solve for x
    x = 10,620,874,565.30/129,534.21
  6. Step 6: Final answer
    x = 81,992.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.