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Finding the Fourth Proportional to 162,118.44, 243,168.48 and 43,780.86

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Solution

The fourth proportional to 162,118.44, 243,168.48 and 43,780.86 is: 65,668.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,118.44 : 243,168.48 = 43,780.86 : x
  2. Step 2: Convert to fraction form
    162,118.44/243,168.48 = 43,780.86/x
  3. Step 3: Cross multiply
    162,118.44x = 243,168.48 × 43,780.86
  4. Step 4: Simplify right side
    162,118.44x = 10,646,125,179.29
  5. Step 5: Solve for x
    x = 10,646,125,179.29/162,118.44
  6. Step 6: Final answer
    x = 65,668.81

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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.