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Finding the Fourth Proportional to 133,404.60, 199,847.70 and 74,134.20

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Solution

The fourth proportional to 133,404.60, 199,847.70 and 74,134.20 is: 111,057.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,404.60 : 199,847.70 = 74,134.20 : x
  2. Step 2: Convert to fraction form
    133,404.60/199,847.70 = 74,134.20/x
  3. Step 3: Cross multiply
    133,404.60x = 199,847.70 × 74,134.20
  4. Step 4: Simplify right side
    133,404.60x = 14,815,549,361.34
  5. Step 5: Solve for x
    x = 14,815,549,361.34/133,404.60
  6. Step 6: Final answer
    x = 111,057.26

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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.