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Finding the Fourth Proportional to 163,540.85, 245,406.44 and 68,764.17

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Solution

The fourth proportional to 163,540.85, 245,406.44 and 68,764.17 is: 103,186.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,540.85 : 245,406.44 = 68,764.17 : x
  2. Step 2: Convert to fraction form
    163,540.85/245,406.44 = 68,764.17/x
  3. Step 3: Cross multiply
    163,540.85x = 245,406.44 × 68,764.17
  4. Step 4: Simplify right side
    163,540.85x = 16,875,169,815.43
  5. Step 5: Solve for x
    x = 16,875,169,815.43/163,540.85
  6. Step 6: Final answer
    x = 103,186.27

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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.