Home / 139,550.08-192,573.26-79,124.80

Finding the Fourth Proportional to 139,550.08, 192,573.26 and 79,124.80

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Solution

The fourth proportional to 139,550.08, 192,573.26 and 79,124.80 is: 109,188.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,550.08 : 192,573.26 = 79,124.80 : x
  2. Step 2: Convert to fraction form
    139,550.08/192,573.26 = 79,124.80/x
  3. Step 3: Cross multiply
    139,550.08x = 192,573.26 × 79,124.80
  4. Step 4: Simplify right side
    139,550.08x = 15,237,320,682.85
  5. Step 5: Solve for x
    x = 15,237,320,682.85/139,550.08
  6. Step 6: Final answer
    x = 109,188.91

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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.