Home / 139,240.26-192,151.58-75,578.04

Finding the Fourth Proportional to 139,240.26, 192,151.58 and 75,578.04

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Solution

The fourth proportional to 139,240.26, 192,151.58 and 75,578.04 is: 104,297.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,240.26 : 192,151.58 = 75,578.04 : x
  2. Step 2: Convert to fraction form
    139,240.26/192,151.58 = 75,578.04/x
  3. Step 3: Cross multiply
    139,240.26x = 192,151.58 × 75,578.04
  4. Step 4: Simplify right side
    139,240.26x = 14,522,439,421.41
  5. Step 5: Solve for x
    x = 14,522,439,421.41/139,240.26
  6. Step 6: Final answer
    x = 104,297.70

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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.