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Finding the Fourth Proportional to 163,500, 245,116.44 and 84,636.96

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Solution

The fourth proportional to 163,500, 245,116.44 and 84,636.96 is: 126,886.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,500 : 245,116.44 = 84,636.96 : x
  2. Step 2: Convert to fraction form
    163,500/245,116.44 = 84,636.96/x
  3. Step 3: Cross multiply
    163,500x = 245,116.44 × 84,636.96
  4. Step 4: Simplify right side
    163,500x = 20,745,910,327.62
  5. Step 5: Solve for x
    x = 20,745,910,327.62/163,500
  6. Step 6: Final answer
    x = 126,886.30

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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.