Home / 139,342.08-192,284.16-82,717.44

Finding the Fourth Proportional to 139,342.08, 192,284.16 and 82,717.44

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Solution

The fourth proportional to 139,342.08, 192,284.16 and 82,717.44 is: 114,145.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,342.08 : 192,284.16 = 82,717.44 : x
  2. Step 2: Convert to fraction form
    139,342.08/192,284.16 = 82,717.44/x
  3. Step 3: Cross multiply
    139,342.08x = 192,284.16 × 82,717.44
  4. Step 4: Simplify right side
    139,342.08x = 15,905,253,467.75
  5. Step 5: Solve for x
    x = 15,905,253,467.75/139,342.08
  6. Step 6: Final answer
    x = 114,145.37

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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.