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Finding the Fourth Proportional to 162,105.32, 243,157.26 and 43,788.80

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Solution

The fourth proportional to 162,105.32, 243,157.26 and 43,788.80 is: 65,683.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,105.32 : 243,157.26 = 43,788.80 : x
  2. Step 2: Convert to fraction form
    162,105.32/243,157.26 = 43,788.80/x
  3. Step 3: Cross multiply
    162,105.32x = 243,157.26 × 43,788.80
  4. Step 4: Simplify right side
    162,105.32x = 10,647,564,626.69
  5. Step 5: Solve for x
    x = 10,647,564,626.69/162,105.32
  6. Step 6: Final answer
    x = 65,683.01

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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.