Home / 139,542.20-192,566.04-75,879.44

Finding the Fourth Proportional to 139,542.20, 192,566.04 and 75,879.44

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Solution

The fourth proportional to 139,542.20, 192,566.04 and 75,879.44 is: 104,712.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,542.20 : 192,566.04 = 75,879.44 : x
  2. Step 2: Convert to fraction form
    139,542.20/192,566.04 = 75,879.44/x
  3. Step 3: Cross multiply
    139,542.20x = 192,566.04 × 75,879.44
  4. Step 4: Simplify right side
    139,542.20x = 14,611,803,278.22
  5. Step 5: Solve for x
    x = 14,611,803,278.22/139,542.20
  6. Step 6: Final answer
    x = 104,712.43

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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.