Home / 139,241.28-192,054.60-85,556.52

Finding the Fourth Proportional to 139,241.28, 192,054.60 and 85,556.52

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Solution

The fourth proportional to 139,241.28, 192,054.60 and 85,556.52 is: 118,007.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,241.28 : 192,054.60 = 85,556.52 : x
  2. Step 2: Convert to fraction form
    139,241.28/192,054.60 = 85,556.52/x
  3. Step 3: Cross multiply
    139,241.28x = 192,054.60 × 85,556.52
  4. Step 4: Simplify right side
    139,241.28x = 16,431,523,225.99
  5. Step 5: Solve for x
    x = 16,431,523,225.99/139,241.28
  6. Step 6: Final answer
    x = 118,007.56

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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.