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Finding the Fourth Proportional to 68,882.40, 103,323.60 and 68,226.30

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Solution

The fourth proportional to 68,882.40, 103,323.60 and 68,226.30 is: 102,339.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,882.40 : 103,323.60 = 68,226.30 : x
  2. Step 2: Convert to fraction form
    68,882.40/103,323.60 = 68,226.30/x
  3. Step 3: Cross multiply
    68,882.40x = 103,323.60 × 68,226.30
  4. Step 4: Simplify right side
    68,882.40x = 7,049,386,930.68
  5. Step 5: Solve for x
    x = 7,049,386,930.68/68,882.40
  6. Step 6: Final answer
    x = 102,339.45

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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.