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Finding the Fourth Proportional to 68,853.58, 103,280.37 and 22,139.26

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Solution

The fourth proportional to 68,853.58, 103,280.37 and 22,139.26 is: 33,208.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,853.58 : 103,280.37 = 22,139.26 : x
  2. Step 2: Convert to fraction form
    68,853.58/103,280.37 = 22,139.26/x
  3. Step 3: Cross multiply
    68,853.58x = 103,280.37 × 22,139.26
  4. Step 4: Simplify right side
    68,853.58x = 2,286,550,964.33
  5. Step 5: Solve for x
    x = 2,286,550,964.33/68,853.58
  6. Step 6: Final answer
    x = 33,208.89

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1.5x scale

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.