Home / 139,519.41-192,538.14-75,858.57

Finding the Fourth Proportional to 139,519.41, 192,538.14 and 75,858.57

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Solution

The fourth proportional to 139,519.41, 192,538.14 and 75,858.57 is: 104,685.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,519.41 : 192,538.14 = 75,858.57 : x
  2. Step 2: Convert to fraction form
    139,519.41/192,538.14 = 75,858.57/x
  3. Step 3: Cross multiply
    139,519.41x = 192,538.14 × 75,858.57
  4. Step 4: Simplify right side
    139,519.41x = 14,605,667,970.86
  5. Step 5: Solve for x
    x = 14,605,667,970.86/139,519.41
  6. Step 6: Final answer
    x = 104,685.56

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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.