Home / 139,379.27-192,342.33-75,717.52

Finding the Fourth Proportional to 139,379.27, 192,342.33 and 75,717.52

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Solution

The fourth proportional to 139,379.27, 192,342.33 and 75,717.52 is: 104,489.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,379.27 : 192,342.33 = 75,717.52 : x
  2. Step 2: Convert to fraction form
    139,379.27/192,342.33 = 75,717.52/x
  3. Step 3: Cross multiply
    139,379.27x = 192,342.33 × 75,717.52
  4. Step 4: Simplify right side
    139,379.27x = 14,563,684,218.62
  5. Step 5: Solve for x
    x = 14,563,684,218.62/139,379.27
  6. Step 6: Final answer
    x = 104,489.60

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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.