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Finding the Fourth Proportional to 108,593.70, 162,890.55 and 67,121.70

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Solution

The fourth proportional to 108,593.70, 162,890.55 and 67,121.70 is: 100,682.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,593.70 : 162,890.55 = 67,121.70 : x
  2. Step 2: Convert to fraction form
    108,593.70/162,890.55 = 67,121.70/x
  3. Step 3: Cross multiply
    108,593.70x = 162,890.55 × 67,121.70
  4. Step 4: Simplify right side
    108,593.70x = 10,933,490,629.94
  5. Step 5: Solve for x
    x = 10,933,490,629.94/108,593.70
  6. Step 6: Final answer
    x = 100,682.55

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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.