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Finding the Fourth Proportional to 161,137.48, 241,788.12 and 72,372.88

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Solution

The fourth proportional to 161,137.48, 241,788.12 and 72,372.88 is: 108,596.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,137.48 : 241,788.12 = 72,372.88 : x
  2. Step 2: Convert to fraction form
    161,137.48/241,788.12 = 72,372.88/x
  3. Step 3: Cross multiply
    161,137.48x = 241,788.12 × 72,372.88
  4. Step 4: Simplify right side
    161,137.48x = 17,498,902,594.19
  5. Step 5: Solve for x
    x = 17,498,902,594.19/161,137.48
  6. Step 6: Final answer
    x = 108,596.10

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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.