Home / 140,683.48-194,153.99-80,255.46

Finding the Fourth Proportional to 140,683.48, 194,153.99 and 80,255.46

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Solution

The fourth proportional to 140,683.48, 194,153.99 and 80,255.46 is: 110,758.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,683.48 : 194,153.99 = 80,255.46 : x
  2. Step 2: Convert to fraction form
    140,683.48/194,153.99 = 80,255.46/x
  3. Step 3: Cross multiply
    140,683.48x = 194,153.99 × 80,255.46
  4. Step 4: Simplify right side
    140,683.48x = 15,581,917,238.69
  5. Step 5: Solve for x
    x = 15,581,917,238.69/140,683.48
  6. Step 6: Final answer
    x = 110,758.68

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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.