Home / 139,439.15-192,405.99-82,044.35

Finding the Fourth Proportional to 139,439.15, 192,405.99 and 82,044.35

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Solution

The fourth proportional to 139,439.15, 192,405.99 and 82,044.35 is: 113,209.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,439.15 : 192,405.99 = 82,044.35 : x
  2. Step 2: Convert to fraction form
    139,439.15/192,405.99 = 82,044.35/x
  3. Step 3: Cross multiply
    139,439.15x = 192,405.99 × 82,044.35
  4. Step 4: Simplify right side
    139,439.15x = 15,785,823,013.40
  5. Step 5: Solve for x
    x = 15,785,823,013.40/139,439.15
  6. Step 6: Final answer
    x = 113,209.41

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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.