Finding the Fourth Proportional to 122,638.39, 182,856.18 and 117,955.99
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Solution
The fourth proportional to 122,638.39, 182,856.18 and 117,955.99 is: 175,874.63
Step by Step Solution
- Step 1: Write the proportion equation
122,638.39 : 182,856.18 = 117,955.99 : x - Step 2: Convert to fraction form
122,638.39/182,856.18 = 117,955.99/x - Step 3: Cross multiply
122,638.39x = 182,856.18 × 117,955.99 - Step 4: Simplify right side
122,638.39x = 21,568,981,739.52 - Step 5: Solve for x
x = 21,568,981,739.52/122,638.39 - Step 6: Final answer
x = 175,874.63
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.