Home / 189,999.36-262,198.02-105,114.60

Finding the Fourth Proportional to 189,999.36, 262,198.02 and 105,114.60

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Solution

The fourth proportional to 189,999.36, 262,198.02 and 105,114.60 is: 145,057.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,999.36 : 262,198.02 = 105,114.60 : x
  2. Step 2: Convert to fraction form
    189,999.36/262,198.02 = 105,114.60/x
  3. Step 3: Cross multiply
    189,999.36x = 262,198.02 × 105,114.60
  4. Step 4: Simplify right side
    189,999.36x = 27,560,839,993.09
  5. Step 5: Solve for x
    x = 27,560,839,993.09/189,999.36
  6. Step 6: Final answer
    x = 145,057.54

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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.