Finding the Fourth Proportional to 122,251.36, 168,707.48 and 68,538.64
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Solution
The fourth proportional to 122,251.36, 168,707.48 and 68,538.64 is: 94,583.66
Step by Step Solution
- Step 1: Write the proportion equation
122,251.36 : 168,707.48 = 68,538.64 : x - Step 2: Convert to fraction form
122,251.36/168,707.48 = 68,538.64/x - Step 3: Cross multiply
122,251.36x = 168,707.48 × 68,538.64 - Step 4: Simplify right side
122,251.36x = 11,562,981,237.03 - Step 5: Solve for x
x = 11,562,981,237.03/122,251.36 - Step 6: Final answer
x = 94,583.66
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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.