Home / 189,579.22-284,289.44-77,183

Finding the Fourth Proportional to 189,579.22, 284,289.44 and 77,183

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Solution

The fourth proportional to 189,579.22, 284,289.44 and 77,183 is: 115,742.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,579.22 : 284,289.44 = 77,183 : x
  2. Step 2: Convert to fraction form
    189,579.22/284,289.44 = 77,183/x
  3. Step 3: Cross multiply
    189,579.22x = 284,289.44 × 77,183
  4. Step 4: Simplify right side
    189,579.22x = 21,942,311,847.52
  5. Step 5: Solve for x
    x = 21,942,311,847.52/189,579.22
  6. Step 6: Final answer
    x = 115,742.18

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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.