Home / 129,682.56-194,450.88-40,919.52

Finding the Fourth Proportional to 129,682.56, 194,450.88 and 40,919.52

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Solution

The fourth proportional to 129,682.56, 194,450.88 and 40,919.52 is: 61,356.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,682.56 : 194,450.88 = 40,919.52 : x
  2. Step 2: Convert to fraction form
    129,682.56/194,450.88 = 40,919.52/x
  3. Step 3: Cross multiply
    129,682.56x = 194,450.88 × 40,919.52
  4. Step 4: Simplify right side
    129,682.56x = 7,956,836,673.18
  5. Step 5: Solve for x
    x = 7,956,836,673.18/129,682.56
  6. Step 6: Final answer
    x = 61,356.26

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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.