Home / 133,709.46-184,515.12-73,278.78

Finding the Fourth Proportional to 133,709.46, 184,515.12 and 73,278.78

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Solution

The fourth proportional to 133,709.46, 184,515.12 and 73,278.78 is: 101,122.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,709.46 : 184,515.12 = 73,278.78 : x
  2. Step 2: Convert to fraction form
    133,709.46/184,515.12 = 73,278.78/x
  3. Step 3: Cross multiply
    133,709.46x = 184,515.12 × 73,278.78
  4. Step 4: Simplify right side
    133,709.46x = 13,521,042,885.15
  5. Step 5: Solve for x
    x = 13,521,042,885.15/133,709.46
  6. Step 6: Final answer
    x = 101,122.56

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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.