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Finding the Fourth Proportional to 133,350, 184,015.44 and 72,909.42

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Solution

The fourth proportional to 133,350, 184,015.44 and 72,909.42 is: 100,610.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,350 : 184,015.44 = 72,909.42 : x
  2. Step 2: Convert to fraction form
    133,350/184,015.44 = 72,909.42/x
  3. Step 3: Cross multiply
    133,350x = 184,015.44 × 72,909.42
  4. Step 4: Simplify right side
    133,350x = 13,416,459,001.44
  5. Step 5: Solve for x
    x = 13,416,459,001.44/133,350
  6. Step 6: Final answer
    x = 100,610.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.