Home / 139,218.06-192,121.56-75,555.93

Finding the Fourth Proportional to 139,218.06, 192,121.56 and 75,555.93

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Solution

The fourth proportional to 139,218.06, 192,121.56 and 75,555.93 is: 104,267.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,218.06 : 192,121.56 = 75,555.93 : x
  2. Step 2: Convert to fraction form
    139,218.06/192,121.56 = 75,555.93/x
  3. Step 3: Cross multiply
    139,218.06x = 192,121.56 × 75,555.93
  4. Step 4: Simplify right side
    139,218.06x = 14,515,923,138.85
  5. Step 5: Solve for x
    x = 14,515,923,138.85/139,218.06
  6. Step 6: Final answer
    x = 104,267.53

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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.