Home / 139,337.92-192,261.36-82,763.20

Finding the Fourth Proportional to 139,337.92, 192,261.36 and 82,763.20

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Solution

The fourth proportional to 139,337.92, 192,261.36 and 82,763.20 is: 114,198.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,337.92 : 192,261.36 = 82,763.20 : x
  2. Step 2: Convert to fraction form
    139,337.92/192,261.36 = 82,763.20/x
  3. Step 3: Cross multiply
    139,337.92x = 192,261.36 × 82,763.20
  4. Step 4: Simplify right side
    139,337.92x = 15,912,165,389.95
  5. Step 5: Solve for x
    x = 15,912,165,389.95/139,337.92
  6. Step 6: Final answer
    x = 114,198.38

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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.