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Finding the Fourth Proportional to 108,613.20, 162,968.40 and 49,418.40

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Solution

The fourth proportional to 108,613.20, 162,968.40 and 49,418.40 is: 74,149.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,613.20 : 162,968.40 = 49,418.40 : x
  2. Step 2: Convert to fraction form
    108,613.20/162,968.40 = 49,418.40/x
  3. Step 3: Cross multiply
    108,613.20x = 162,968.40 × 49,418.40
  4. Step 4: Simplify right side
    108,613.20x = 8,053,637,578.56
  5. Step 5: Solve for x
    x = 8,053,637,578.56/108,613.20
  6. Step 6: Final answer
    x = 74,149.71

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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.