Home / 143,661.28-198,250.32-80,004.64

Finding the Fourth Proportional to 143,661.28, 198,250.32 and 80,004.64

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Solution

The fourth proportional to 143,661.28, 198,250.32 and 80,004.64 is: 110,405.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,661.28 : 198,250.32 = 80,004.64 : x
  2. Step 2: Convert to fraction form
    143,661.28/198,250.32 = 80,004.64/x
  3. Step 3: Cross multiply
    143,661.28x = 198,250.32 × 80,004.64
  4. Step 4: Simplify right side
    143,661.28x = 15,860,945,481.48
  5. Step 5: Solve for x
    x = 15,860,945,481.48/143,661.28
  6. Step 6: Final answer
    x = 110,405.15

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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.