Home / 129,666.05-194,525.28-54,786.41

Finding the Fourth Proportional to 129,666.05, 194,525.28 and 54,786.41

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Solution

The fourth proportional to 129,666.05, 194,525.28 and 54,786.41 is: 82,190.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,666.05 : 194,525.28 = 54,786.41 : x
  2. Step 2: Convert to fraction form
    129,666.05/194,525.28 = 54,786.41/x
  3. Step 3: Cross multiply
    129,666.05x = 194,525.28 × 54,786.41
  4. Step 4: Simplify right side
    129,666.05x = 10,657,341,745.44
  5. Step 5: Solve for x
    x = 10,657,341,745.44/129,666.05
  6. Step 6: Final answer
    x = 82,190.69

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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.