Home / 189,980.44-262,173.11-105,110.26

Finding the Fourth Proportional to 189,980.44, 262,173.11 and 105,110.26

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Solution

The fourth proportional to 189,980.44, 262,173.11 and 105,110.26 is: 145,052.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,980.44 : 262,173.11 = 105,110.26 : x
  2. Step 2: Convert to fraction form
    189,980.44/262,173.11 = 105,110.26/x
  3. Step 3: Cross multiply
    189,980.44x = 262,173.11 × 105,110.26
  4. Step 4: Simplify right side
    189,980.44x = 27,557,082,576.12
  5. Step 5: Solve for x
    x = 27,557,082,576.12/189,980.44
  6. Step 6: Final answer
    x = 145,052.21

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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.