Home / 129,700.85-194,509.15-49,734.61

Finding the Fourth Proportional to 129,700.85, 194,509.15 and 49,734.61

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Solution

The fourth proportional to 129,700.85, 194,509.15 and 49,734.61 is: 74,585.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,700.85 : 194,509.15 = 49,734.61 : x
  2. Step 2: Convert to fraction form
    129,700.85/194,509.15 = 49,734.61/x
  3. Step 3: Cross multiply
    129,700.85x = 194,509.15 × 49,734.61
  4. Step 4: Simplify right side
    129,700.85x = 9,673,836,106.07
  5. Step 5: Solve for x
    x = 9,673,836,106.07/129,700.85
  6. Step 6: Final answer
    x = 74,585.76

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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.