Home / 68,785.26-103,178.03-18,866.07

Finding the Fourth Proportional to 68,785.26, 103,178.03 and 18,866.07

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Solution

The fourth proportional to 68,785.26, 103,178.03 and 18,866.07 is: 28,299.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,785.26 : 103,178.03 = 18,866.07 : x
  2. Step 2: Convert to fraction form
    68,785.26/103,178.03 = 18,866.07/x
  3. Step 3: Cross multiply
    68,785.26x = 103,178.03 × 18,866.07
  4. Step 4: Simplify right side
    68,785.26x = 1,946,563,936.44
  5. Step 5: Solve for x
    x = 1,946,563,936.44/68,785.26
  6. Step 6: Final answer
    x = 28,299.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.