Finding the Fourth Proportional to 135,476.80, 202,391.21 and 87,702.70
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Solution
The fourth proportional to 135,476.80, 202,391.21 and 87,702.70 is: 131,020.62
Step by Step Solution
- Step 1: Write the proportion equation
135,476.80 : 202,391.21 = 87,702.70 : x - Step 2: Convert to fraction form
135,476.80/202,391.21 = 87,702.70/x - Step 3: Cross multiply
135,476.80x = 202,391.21 × 87,702.70 - Step 4: Simplify right side
135,476.80x = 17,750,255,172.70 - Step 5: Solve for x
x = 17,750,255,172.70/135,476.80 - Step 6: Final answer
x = 131,020.62
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.