Home / 189,162.18-261,030.73-106,388.56

Finding the Fourth Proportional to 189,162.18, 261,030.73 and 106,388.56

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Solution

The fourth proportional to 189,162.18, 261,030.73 and 106,388.56 is: 146,808.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,162.18 : 261,030.73 = 106,388.56 : x
  2. Step 2: Convert to fraction form
    189,162.18/261,030.73 = 106,388.56/x
  3. Step 3: Cross multiply
    189,162.18x = 261,030.73 × 106,388.56
  4. Step 4: Simplify right side
    189,162.18x = 27,770,682,561.90
  5. Step 5: Solve for x
    x = 27,770,682,561.90/189,162.18
  6. Step 6: Final answer
    x = 146,808.85

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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.