Finding the Fourth Proportional to 122,581.80, 183,872.70 and 39,475.80
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Solution
The fourth proportional to 122,581.80, 183,872.70 and 39,475.80 is: 59,213.70
Step by Step Solution
- Step 1: Write the proportion equation
122,581.80 : 183,872.70 = 39,475.80 : x - Step 2: Convert to fraction form
122,581.80/183,872.70 = 39,475.80/x - Step 3: Cross multiply
122,581.80x = 183,872.70 × 39,475.80 - Step 4: Simplify right side
122,581.80x = 7,258,521,930.66 - Step 5: Solve for x
x = 7,258,521,930.66/122,581.80 - Step 6: Final answer
x = 59,213.70
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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.