Home / 141,170.45-194,815.53-76,640.18

Finding the Fourth Proportional to 141,170.45, 194,815.53 and 76,640.18

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Solution

The fourth proportional to 141,170.45, 194,815.53 and 76,640.18 is: 105,763.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,170.45 : 194,815.53 = 76,640.18 : x
  2. Step 2: Convert to fraction form
    141,170.45/194,815.53 = 76,640.18/x
  3. Step 3: Cross multiply
    141,170.45x = 194,815.53 × 76,640.18
  4. Step 4: Simplify right side
    141,170.45x = 14,930,696,311.92
  5. Step 5: Solve for x
    x = 14,930,696,311.92/141,170.45
  6. Step 6: Final answer
    x = 105,763.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.