Home / 189,144.07-283,783.86-81,028.08

Finding the Fourth Proportional to 189,144.07, 283,783.86 and 81,028.08

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Solution

The fourth proportional to 189,144.07, 283,783.86 and 81,028.08 is: 121,571.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,144.07 : 283,783.86 = 81,028.08 : x
  2. Step 2: Convert to fraction form
    189,144.07/283,783.86 = 81,028.08/x
  3. Step 3: Cross multiply
    189,144.07x = 283,783.86 × 81,028.08
  4. Step 4: Simplify right side
    189,144.07x = 22,994,461,310.79
  5. Step 5: Solve for x
    x = 22,994,461,310.79/189,144.07
  6. Step 6: Final answer
    x = 121,571.15

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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.