Finding the Fourth Proportional to 122,304.26, 168,623.64 and 79,207.61
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Solution
The fourth proportional to 122,304.26, 168,623.64 and 79,207.61 is: 109,205.31
Step by Step Solution
- Step 1: Write the proportion equation
122,304.26 : 168,623.64 = 79,207.61 : x - Step 2: Convert to fraction form
122,304.26/168,623.64 = 79,207.61/x - Step 3: Cross multiply
122,304.26x = 168,623.64 × 79,207.61 - Step 4: Simplify right side
122,304.26x = 13,356,274,670.78 - Step 5: Solve for x
x = 13,356,274,670.78/122,304.26 - Step 6: Final answer
x = 109,205.31
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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.