Finding the Fourth Proportional to 122,468.18, 168,994.42 and 68,740.88
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Solution
The fourth proportional to 122,468.18, 168,994.42 and 68,740.88 is: 94,855.86
Step by Step Solution
- Step 1: Write the proportion equation
122,468.18 : 168,994.42 = 68,740.88 : x - Step 2: Convert to fraction form
122,468.18/168,994.42 = 68,740.88/x - Step 3: Cross multiply
122,468.18x = 168,994.42 × 68,740.88 - Step 4: Simplify right side
122,468.18x = 11,616,824,129.07 - Step 5: Solve for x
x = 11,616,824,129.07/122,468.18 - Step 6: Final answer
x = 94,855.86
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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.