Finding the Fourth Proportional to 189,745.36, 261,853.84 and 104,867.92
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Solution
The fourth proportional to 189,745.36, 261,853.84 and 104,867.92 is: 144,720.63
Step by Step Solution
- Step 1: Write the proportion equation
189,745.36 : 261,853.84 = 104,867.92 : x - Step 2: Convert to fraction form
189,745.36/261,853.84 = 104,867.92/x - Step 3: Cross multiply
189,745.36x = 261,853.84 × 104,867.92 - Step 4: Simplify right side
189,745.36x = 27,460,067,544.81 - Step 5: Solve for x
x = 27,460,067,544.81/189,745.36 - Step 6: Final answer
x = 144,720.63
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1.5x scale
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.