Home / 144,185.43-198,976.32-80,525.64

Finding the Fourth Proportional to 144,185.43, 198,976.32 and 80,525.64

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Solution

The fourth proportional to 144,185.43, 198,976.32 and 80,525.64 is: 111,125.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,185.43 : 198,976.32 = 80,525.64 : x
  2. Step 2: Convert to fraction form
    144,185.43/198,976.32 = 80,525.64/x
  3. Step 3: Cross multiply
    144,185.43x = 198,976.32 × 80,525.64
  4. Step 4: Simplify right side
    144,185.43x = 16,022,695,512.84
  5. Step 5: Solve for x
    x = 16,022,695,512.84/144,185.43
  6. Step 6: Final answer
    x = 111,125.62

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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.