Home / 139,218.24-192,121.26-75,556.02

Finding the Fourth Proportional to 139,218.24, 192,121.26 and 75,556.02

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Solution

The fourth proportional to 139,218.24, 192,121.26 and 75,556.02 is: 104,267.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,218.24 : 192,121.26 = 75,556.02 : x
  2. Step 2: Convert to fraction form
    139,218.24/192,121.26 = 75,556.02/x
  3. Step 3: Cross multiply
    139,218.24x = 192,121.26 × 75,556.02
  4. Step 4: Simplify right side
    139,218.24x = 14,515,917,762.99
  5. Step 5: Solve for x
    x = 14,515,917,762.99/139,218.24
  6. Step 6: Final answer
    x = 104,267.36

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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.