Home / 139,919.40-193,153.41-82,539.27

Finding the Fourth Proportional to 139,919.40, 193,153.41 and 82,539.27

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Solution

The fourth proportional to 139,919.40, 193,153.41 and 82,539.27 is: 113,942.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,919.40 : 193,153.41 = 82,539.27 : x
  2. Step 2: Convert to fraction form
    139,919.40/193,153.41 = 82,539.27/x
  3. Step 3: Cross multiply
    139,919.40x = 193,153.41 × 82,539.27
  4. Step 4: Simplify right side
    139,919.40x = 15,942,741,459.41
  5. Step 5: Solve for x
    x = 15,942,741,459.41/139,919.40
  6. Step 6: Final answer
    x = 113,942.32

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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.