Home / 139,578.07-192,615.94-75,915.87

Finding the Fourth Proportional to 139,578.07, 192,615.94 and 75,915.87

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Solution

The fourth proportional to 139,578.07, 192,615.94 and 75,915.87 is: 104,762.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,578.07 : 192,615.94 = 75,915.87 : x
  2. Step 2: Convert to fraction form
    139,578.07/192,615.94 = 75,915.87/x
  3. Step 3: Cross multiply
    139,578.07x = 192,615.94 × 75,915.87
  4. Step 4: Simplify right side
    139,578.07x = 14,622,606,660.97
  5. Step 5: Solve for x
    x = 14,622,606,660.97/139,578.07
  6. Step 6: Final answer
    x = 104,762.92

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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.