Home / 129,921.81-194,853.33-41,126.88

Finding the Fourth Proportional to 129,921.81, 194,853.33 and 41,126.88

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Solution

The fourth proportional to 129,921.81, 194,853.33 and 41,126.88 is: 61,681.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,921.81 : 194,853.33 = 41,126.88 : x
  2. Step 2: Convert to fraction form
    129,921.81/194,853.33 = 41,126.88/x
  3. Step 3: Cross multiply
    129,921.81x = 194,853.33 × 41,126.88
  4. Step 4: Simplify right side
    129,921.81x = 8,013,709,876.69
  5. Step 5: Solve for x
    x = 8,013,709,876.69/129,921.81
  6. Step 6: Final answer
    x = 61,681.02

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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.