Home / 139,905.38-192,626.75-127,120.30

Finding the Fourth Proportional to 139,905.38, 192,626.75 and 127,120.30

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Solution

The fourth proportional to 139,905.38, 192,626.75 and 127,120.30 is: 175,023.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,905.38 : 192,626.75 = 127,120.30 : x
  2. Step 2: Convert to fraction form
    139,905.38/192,626.75 = 127,120.30/x
  3. Step 3: Cross multiply
    139,905.38x = 192,626.75 × 127,120.30
  4. Step 4: Simplify right side
    139,905.38x = 24,486,770,084.26
  5. Step 5: Solve for x
    x = 24,486,770,084.26/139,905.38
  6. Step 6: Final answer
    x = 175,023.79

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1.5x scale

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.