Home / 144,120.62-198,878.10-80,462.42

Finding the Fourth Proportional to 144,120.62, 198,878.10 and 80,462.42

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Solution

The fourth proportional to 144,120.62, 198,878.10 and 80,462.42 is: 111,033.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,120.62 : 198,878.10 = 80,462.42 : x
  2. Step 2: Convert to fraction form
    144,120.62/198,878.10 = 80,462.42/x
  3. Step 3: Cross multiply
    144,120.62x = 198,878.10 × 80,462.42
  4. Step 4: Simplify right side
    144,120.62x = 16,002,213,211.00
  5. Step 5: Solve for x
    x = 16,002,213,211.00/144,120.62
  6. Step 6: Final answer
    x = 111,033.47

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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.