Home / 139,504.40-192,516.84-82,146.20

Finding the Fourth Proportional to 139,504.40, 192,516.84 and 82,146.20

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Solution

The fourth proportional to 139,504.40, 192,516.84 and 82,146.20 is: 113,362.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,504.40 : 192,516.84 = 82,146.20 : x
  2. Step 2: Convert to fraction form
    139,504.40/192,516.84 = 82,146.20/x
  3. Step 3: Cross multiply
    139,504.40x = 192,516.84 × 82,146.20
  4. Step 4: Simplify right side
    139,504.40x = 15,814,526,842.01
  5. Step 5: Solve for x
    x = 15,814,526,842.01/139,504.40
  6. Step 6: Final answer
    x = 113,362.21

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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.