Home / 189,145.32-283,785.74-81,029.33

Finding the Fourth Proportional to 189,145.32, 283,785.74 and 81,029.33

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Solution

The fourth proportional to 189,145.32, 283,785.74 and 81,029.33 is: 121,573.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,145.32 : 283,785.74 = 81,029.33 : x
  2. Step 2: Convert to fraction form
    189,145.32/283,785.74 = 81,029.33/x
  3. Step 3: Cross multiply
    189,145.32x = 283,785.74 × 81,029.33
  4. Step 4: Simplify right side
    189,145.32x = 22,994,968,375.75
  5. Step 5: Solve for x
    x = 22,994,968,375.75/189,145.32
  6. Step 6: Final answer
    x = 121,573.02

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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.