Finding the Fourth Proportional to 116,120.54, 173,885.37 and 76,557.62
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Solution
The fourth proportional to 116,120.54, 173,885.37 and 76,557.62 is: 114,641.65
Step by Step Solution
- Step 1: Write the proportion equation
116,120.54 : 173,885.37 = 76,557.62 : x - Step 2: Convert to fraction form
116,120.54/173,885.37 = 76,557.62/x - Step 3: Cross multiply
116,120.54x = 173,885.37 × 76,557.62 - Step 4: Simplify right side
116,120.54x = 13,312,250,706.13 - Step 5: Solve for x
x = 13,312,250,706.13/116,120.54 - Step 6: Final answer
x = 114,641.65
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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.