Home / 68,782.09-103,165.06-18,867.23

Finding the Fourth Proportional to 68,782.09, 103,165.06 and 18,867.23

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Solution

The fourth proportional to 68,782.09, 103,165.06 and 18,867.23 is: 28,298.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,782.09 : 103,165.06 = 18,867.23 : x
  2. Step 2: Convert to fraction form
    68,782.09/103,165.06 = 18,867.23/x
  3. Step 3: Cross multiply
    68,782.09x = 103,165.06 × 18,867.23
  4. Step 4: Simplify right side
    68,782.09x = 1,946,439,140.45
  5. Step 5: Solve for x
    x = 1,946,439,140.45/68,782.09
  6. Step 6: Final answer
    x = 28,298.63

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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.