Finding the Fourth Proportional to 122,540.23, 183,679.66 and 69,836.23
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Solution
The fourth proportional to 122,540.23, 183,679.66 and 69,836.23 is: 104,679.87
Step by Step Solution
- Step 1: Write the proportion equation
122,540.23 : 183,679.66 = 69,836.23 : x - Step 2: Convert to fraction form
122,540.23/183,679.66 = 69,836.23/x - Step 3: Cross multiply
122,540.23x = 183,679.66 × 69,836.23 - Step 4: Simplify right side
122,540.23x = 12,827,494,982.08 - Step 5: Solve for x
x = 12,827,494,982.08/122,540.23 - Step 6: Final answer
x = 104,679.87
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.