Home / 141,796.55-195,683.42-78,138.45

Finding the Fourth Proportional to 141,796.55, 195,683.42 and 78,138.45

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Solution

The fourth proportional to 141,796.55, 195,683.42 and 78,138.45 is: 107,833.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,796.55 : 195,683.42 = 78,138.45 : x
  2. Step 2: Convert to fraction form
    141,796.55/195,683.42 = 78,138.45/x
  3. Step 3: Cross multiply
    141,796.55x = 195,683.42 × 78,138.45
  4. Step 4: Simplify right side
    141,796.55x = 15,290,399,324.85
  5. Step 5: Solve for x
    x = 15,290,399,324.85/141,796.55
  6. Step 6: Final answer
    x = 107,833.36

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1.5x scale

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.