Home / 105,850.16-158,729.06-30,968.70

Finding the Fourth Proportional to 105,850.16, 158,729.06 and 30,968.70

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Solution

The fourth proportional to 105,850.16, 158,729.06 and 30,968.70 is: 46,439.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,850.16 : 158,729.06 = 30,968.70 : x
  2. Step 2: Convert to fraction form
    105,850.16/158,729.06 = 30,968.70/x
  3. Step 3: Cross multiply
    105,850.16x = 158,729.06 × 30,968.70
  4. Step 4: Simplify right side
    105,850.16x = 4,915,632,640.42
  5. Step 5: Solve for x
    x = 4,915,632,640.42/105,850.16
  6. Step 6: Final answer
    x = 46,439.54

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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.