Home / 139,218.18-192,119.49-75,556.02

Finding the Fourth Proportional to 139,218.18, 192,119.49 and 75,556.02

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Solution

The fourth proportional to 139,218.18, 192,119.49 and 75,556.02 is: 104,266.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,218.18 : 192,119.49 = 75,556.02 : x
  2. Step 2: Convert to fraction form
    139,218.18/192,119.49 = 75,556.02/x
  3. Step 3: Cross multiply
    139,218.18x = 192,119.49 × 75,556.02
  4. Step 4: Simplify right side
    139,218.18x = 14,515,784,028.83
  5. Step 5: Solve for x
    x = 14,515,784,028.83/139,218.18
  6. Step 6: Final answer
    x = 104,266.44

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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.