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Finding the Fourth Proportional to 189,183, 261,074.31 and 104,303.10

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Solution

The fourth proportional to 189,183, 261,074.31 and 104,303.10 is: 143,939.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,183 : 261,074.31 = 104,303.10 : x
  2. Step 2: Convert to fraction form
    189,183/261,074.31 = 104,303.10/x
  3. Step 3: Cross multiply
    189,183x = 261,074.31 × 104,303.10
  4. Step 4: Simplify right side
    189,183x = 27,230,859,863.36
  5. Step 5: Solve for x
    x = 27,230,859,863.36/189,183
  6. Step 6: Final answer
    x = 143,939.25

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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.