Home / 129,743.88-194,614.65-40,997.39

Finding the Fourth Proportional to 129,743.88, 194,614.65 and 40,997.39

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Solution

The fourth proportional to 129,743.88, 194,614.65 and 40,997.39 is: 61,495.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,743.88 : 194,614.65 = 40,997.39 : x
  2. Step 2: Convert to fraction form
    129,743.88/194,614.65 = 40,997.39/x
  3. Step 3: Cross multiply
    129,743.88x = 194,614.65 × 40,997.39
  4. Step 4: Simplify right side
    129,743.88x = 7,978,692,827.40
  5. Step 5: Solve for x
    x = 7,978,692,827.40/129,743.88
  6. Step 6: Final answer
    x = 61,495.72

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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.