Finding the Fourth Proportional to 122,251.21, 168,706.55 and 68,536.23
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Solution
The fourth proportional to 122,251.21, 168,706.55 and 68,536.23 is: 94,579.94
Step by Step Solution
- Step 1: Write the proportion equation
122,251.21 : 168,706.55 = 68,536.23 : x - Step 2: Convert to fraction form
122,251.21/168,706.55 = 68,536.23/x - Step 3: Cross multiply
122,251.21x = 168,706.55 × 68,536.23 - Step 4: Simplify right side
122,251.21x = 11,562,511,350.93 - Step 5: Solve for x
x = 11,562,511,350.93/122,251.21 - Step 6: Final answer
x = 94,579.94
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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.