Home / 129,540.11-194,317.14-40,800.56

Finding the Fourth Proportional to 129,540.11, 194,317.14 and 40,800.56

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Solution

The fourth proportional to 129,540.11, 194,317.14 and 40,800.56 is: 61,203.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,540.11 : 194,317.14 = 40,800.56 : x
  2. Step 2: Convert to fraction form
    129,540.11/194,317.14 = 40,800.56/x
  3. Step 3: Cross multiply
    129,540.11x = 194,317.14 × 40,800.56
  4. Step 4: Simplify right side
    129,540.11x = 7,928,247,925.60
  5. Step 5: Solve for x
    x = 7,928,247,925.60/129,540.11
  6. Step 6: Final answer
    x = 61,203.04

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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.