Home / 107,709.75-161,586.50-45,380.25

Finding the Fourth Proportional to 107,709.75, 161,586.50 and 45,380.25

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Solution

The fourth proportional to 107,709.75, 161,586.50 and 45,380.25 is: 68,079.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,709.75 : 161,586.50 = 45,380.25 : x
  2. Step 2: Convert to fraction form
    107,709.75/161,586.50 = 45,380.25/x
  3. Step 3: Cross multiply
    107,709.75x = 161,586.50 × 45,380.25
  4. Step 4: Simplify right side
    107,709.75x = 7,332,835,539.72
  5. Step 5: Solve for x
    x = 7,332,835,539.72/107,709.75
  6. Step 6: Final answer
    x = 68,079.59

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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.