Home / 141,440.38-195,171.32-81,007.43

Finding the Fourth Proportional to 141,440.38, 195,171.32 and 81,007.43

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Solution

The fourth proportional to 141,440.38, 195,171.32 and 81,007.43 is: 111,780.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,440.38 : 195,171.32 = 81,007.43 : x
  2. Step 2: Convert to fraction form
    141,440.38/195,171.32 = 81,007.43/x
  3. Step 3: Cross multiply
    141,440.38x = 195,171.32 × 81,007.43
  4. Step 4: Simplify right side
    141,440.38x = 15,810,326,269.57
  5. Step 5: Solve for x
    x = 15,810,326,269.57/141,440.38
  6. Step 6: Final answer
    x = 111,780.85

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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.