Home / 142,571.21-196,792.11-82,182.24

Finding the Fourth Proportional to 142,571.21, 196,792.11 and 82,182.24

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Solution

The fourth proportional to 142,571.21, 196,792.11 and 82,182.24 is: 113,436.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,571.21 : 196,792.11 = 82,182.24 : x
  2. Step 2: Convert to fraction form
    142,571.21/196,792.11 = 82,182.24/x
  3. Step 3: Cross multiply
    142,571.21x = 196,792.11 × 82,182.24
  4. Step 4: Simplify right side
    142,571.21x = 16,172,816,414.13
  5. Step 5: Solve for x
    x = 16,172,816,414.13/142,571.21
  6. Step 6: Final answer
    x = 113,436.77

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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.