Home / 189,144.10-283,783.91-81,028.11

Finding the Fourth Proportional to 189,144.10, 283,783.91 and 81,028.11

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Solution

The fourth proportional to 189,144.10, 283,783.91 and 81,028.11 is: 121,571.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,144.10 : 283,783.91 = 81,028.11 : x
  2. Step 2: Convert to fraction form
    189,144.10/283,783.91 = 81,028.11/x
  3. Step 3: Cross multiply
    189,144.10x = 283,783.91 × 81,028.11
  4. Step 4: Simplify right side
    189,144.10x = 22,994,474,534.76
  5. Step 5: Solve for x
    x = 22,994,474,534.76/189,144.10
  6. Step 6: Final answer
    x = 121,571.20

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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.