Home / 129,899.88-194,918.22-92,192.76

Finding the Fourth Proportional to 129,899.88, 194,918.22 and 92,192.76

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Solution

The fourth proportional to 129,899.88, 194,918.22 and 92,192.76 is: 138,337.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,899.88 : 194,918.22 = 92,192.76 : x
  2. Step 2: Convert to fraction form
    129,899.88/194,918.22 = 92,192.76/x
  3. Step 3: Cross multiply
    129,899.88x = 194,918.22 × 92,192.76
  4. Step 4: Simplify right side
    129,899.88x = 17,970,048,676.09
  5. Step 5: Solve for x
    x = 17,970,048,676.09/129,899.88
  6. Step 6: Final answer
    x = 138,337.68

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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.