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Finding the Fourth Proportional to 133,765.75, 184,602.45 and 80,040.43

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Solution

The fourth proportional to 133,765.75, 184,602.45 and 80,040.43 is: 110,459.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,765.75 : 184,602.45 = 80,040.43 : x
  2. Step 2: Convert to fraction form
    133,765.75/184,602.45 = 80,040.43/x
  3. Step 3: Cross multiply
    133,765.75x = 184,602.45 × 80,040.43
  4. Step 4: Simplify right side
    133,765.75x = 14,775,659,477.05
  5. Step 5: Solve for x
    x = 14,775,659,477.05/133,765.75
  6. Step 6: Final answer
    x = 110,459.21

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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.