Home / 139,783.44-192,895.36-76,121.04

Finding the Fourth Proportional to 139,783.44, 192,895.36 and 76,121.04

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Solution

The fourth proportional to 139,783.44, 192,895.36 and 76,121.04 is: 105,043.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,783.44 : 192,895.36 = 76,121.04 : x
  2. Step 2: Convert to fraction form
    139,783.44/192,895.36 = 76,121.04/x
  3. Step 3: Cross multiply
    139,783.44x = 192,895.36 × 76,121.04
  4. Step 4: Simplify right side
    139,783.44x = 14,683,395,414.37
  5. Step 5: Solve for x
    x = 14,683,395,414.37/139,783.44
  6. Step 6: Final answer
    x = 105,043.88

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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.