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Finding the Fourth Proportional to 162,096.15, 243,143.97 and 90,094.85

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Solution

The fourth proportional to 162,096.15, 243,143.97 and 90,094.85 is: 135,142.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,096.15 : 243,143.97 = 90,094.85 : x
  2. Step 2: Convert to fraction form
    162,096.15/243,143.97 = 90,094.85/x
  3. Step 3: Cross multiply
    162,096.15x = 243,143.97 × 90,094.85
  4. Step 4: Simplify right side
    162,096.15x = 21,906,019,505.55
  5. Step 5: Solve for x
    x = 21,906,019,505.55/162,096.15
  6. Step 6: Final answer
    x = 135,142.13

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.