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Finding the Fourth Proportional to 163,861.43, 245,825.84 and 69,091.90

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Solution

The fourth proportional to 163,861.43, 245,825.84 and 69,091.90 is: 103,652.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,861.43 : 245,825.84 = 69,091.90 : x
  2. Step 2: Convert to fraction form
    163,861.43/245,825.84 = 69,091.90/x
  3. Step 3: Cross multiply
    163,861.43x = 245,825.84 × 69,091.90
  4. Step 4: Simplify right side
    163,861.43x = 16,984,573,912.86
  5. Step 5: Solve for x
    x = 16,984,573,912.86/163,861.43
  6. Step 6: Final answer
    x = 103,652.06

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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.