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Finding the Fourth Proportional to 108,397.37, 162,631.42 and 48,418.54

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Solution

The fourth proportional to 108,397.37, 162,631.42 and 48,418.54 is: 72,643.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,397.37 : 162,631.42 = 48,418.54 : x
  2. Step 2: Convert to fraction form
    108,397.37/162,631.42 = 48,418.54/x
  3. Step 3: Cross multiply
    108,397.37x = 162,631.42 × 48,418.54
  4. Step 4: Simplify right side
    108,397.37x = 7,874,375,386.90
  5. Step 5: Solve for x
    x = 7,874,375,386.90/108,397.37
  6. Step 6: Final answer
    x = 72,643.60

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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.