Home / 189,999.36-285,219.92-111,170.16

Finding the Fourth Proportional to 189,999.36, 285,219.92 and 111,170.16

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Solution

The fourth proportional to 189,999.36, 285,219.92 and 111,170.16 is: 166,884.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,999.36 : 285,219.92 = 111,170.16 : x
  2. Step 2: Convert to fraction form
    189,999.36/285,219.92 = 111,170.16/x
  3. Step 3: Cross multiply
    189,999.36x = 285,219.92 × 111,170.16
  4. Step 4: Simplify right side
    189,999.36x = 31,707,944,141.59
  5. Step 5: Solve for x
    x = 31,707,944,141.59/189,999.36
  6. Step 6: Final answer
    x = 166,884.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.