Home / 189,611.21-261,665.07-104,729.69

Finding the Fourth Proportional to 189,611.21, 261,665.07 and 104,729.69

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Solution

The fourth proportional to 189,611.21, 261,665.07 and 104,729.69 is: 144,527.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,611.21 : 261,665.07 = 104,729.69 : x
  2. Step 2: Convert to fraction form
    189,611.21/261,665.07 = 104,729.69/x
  3. Step 3: Cross multiply
    189,611.21x = 261,665.07 × 104,729.69
  4. Step 4: Simplify right side
    189,611.21x = 27,404,101,664.93
  5. Step 5: Solve for x
    x = 27,404,101,664.93/189,611.21
  6. Step 6: Final answer
    x = 144,527.86

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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.