Finding the Fourth Proportional to 113,531.54, 170,122.11 and 71,891.06
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Solution
The fourth proportional to 113,531.54, 170,122.11 and 71,891.06 is: 107,725.65
Step by Step Solution
- Step 1: Write the proportion equation
113,531.54 : 170,122.11 = 71,891.06 : x - Step 2: Convert to fraction form
113,531.54/170,122.11 = 71,891.06/x - Step 3: Cross multiply
113,531.54x = 170,122.11 × 71,891.06 - Step 4: Simplify right side
113,531.54x = 12,230,258,817.34 - Step 5: Solve for x
x = 12,230,258,817.34/113,531.54 - Step 6: Final answer
x = 107,725.65
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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.