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Finding the Fourth Proportional to 162,244.70, 243,367.05 and 68,738.30

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Solution

The fourth proportional to 162,244.70, 243,367.05 and 68,738.30 is: 103,107.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,244.70 : 243,367.05 = 68,738.30 : x
  2. Step 2: Convert to fraction form
    162,244.70/243,367.05 = 68,738.30/x
  3. Step 3: Cross multiply
    162,244.70x = 243,367.05 × 68,738.30
  4. Step 4: Simplify right side
    162,244.70x = 16,728,637,293.02
  5. Step 5: Solve for x
    x = 16,728,637,293.02/162,244.70
  6. Step 6: Final answer
    x = 103,107.45

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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.