Finding the Fourth Proportional to 122,173.24, 168,599.66 and 79,706.68
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Solution
The fourth proportional to 122,173.24, 168,599.66 and 79,706.68 is: 109,995.60
Step by Step Solution
- Step 1: Write the proportion equation
122,173.24 : 168,599.66 = 79,706.68 : x - Step 2: Convert to fraction form
122,173.24/168,599.66 = 79,706.68/x - Step 3: Cross multiply
122,173.24x = 168,599.66 × 79,706.68 - Step 4: Simplify right side
122,173.24x = 13,438,519,147.73 - Step 5: Solve for x
x = 13,438,519,147.73/122,173.24 - Step 6: Final answer
x = 109,995.60
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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.