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Finding the Fourth Proportional to 68,195.34, 102,293.03 and 20,810.68

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Solution

The fourth proportional to 68,195.34, 102,293.03 and 20,810.68 is: 31,216.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,195.34 : 102,293.03 = 20,810.68 : x
  2. Step 2: Convert to fraction form
    68,195.34/102,293.03 = 20,810.68/x
  3. Step 3: Cross multiply
    68,195.34x = 102,293.03 × 20,810.68
  4. Step 4: Simplify right side
    68,195.34x = 2,128,787,513.56
  5. Step 5: Solve for x
    x = 2,128,787,513.56/68,195.34
  6. Step 6: Final answer
    x = 31,216.03

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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.