Home / 68,806.22-103,208.40-18,886.25

Finding the Fourth Proportional to 68,806.22, 103,208.40 and 18,886.25

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Solution

The fourth proportional to 68,806.22, 103,208.40 and 18,886.25 is: 28,329.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,806.22 : 103,208.40 = 18,886.25 : x
  2. Step 2: Convert to fraction form
    68,806.22/103,208.40 = 18,886.25/x
  3. Step 3: Cross multiply
    68,806.22x = 103,208.40 × 18,886.25
  4. Step 4: Simplify right side
    68,806.22x = 1,949,219,902.52
  5. Step 5: Solve for x
    x = 1,949,219,902.52/68,806.22
  6. Step 6: Final answer
    x = 28,329.13

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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.