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Finding the Fourth Proportional to 162,905.30, 244,163.55 and 68,135.30

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Solution

The fourth proportional to 162,905.30, 244,163.55 and 68,135.30 is: 102,121.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,905.30 : 244,163.55 = 68,135.30 : x
  2. Step 2: Convert to fraction form
    162,905.30/244,163.55 = 68,135.30/x
  3. Step 3: Cross multiply
    162,905.30x = 244,163.55 × 68,135.30
  4. Step 4: Simplify right side
    162,905.30x = 16,636,156,728.32
  5. Step 5: Solve for x
    x = 16,636,156,728.32/162,905.30
  6. Step 6: Final answer
    x = 102,121.64

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1.5x scale

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.