Finding the Fourth Proportional to 135,020.80, 202,531.20 and 127,763.20
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Solution
The fourth proportional to 135,020.80, 202,531.20 and 127,763.20 is: 191,644.80
Step by Step Solution
- Step 1: Write the proportion equation
135,020.80 : 202,531.20 = 127,763.20 : x - Step 2: Convert to fraction form
135,020.80/202,531.20 = 127,763.20/x - Step 3: Cross multiply
135,020.80x = 202,531.20 × 127,763.20 - Step 4: Simplify right side
135,020.80x = 25,876,034,211.84 - Step 5: Solve for x
x = 25,876,034,211.84/135,020.80 - Step 6: Final answer
x = 191,644.80
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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.