Finding the Fourth Proportional to 128,391.19, 192,482.44 and 53,567.08
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Solution
The fourth proportional to 128,391.19, 192,482.44 and 53,567.08 is: 80,307.09
Step by Step Solution
- Step 1: Write the proportion equation
128,391.19 : 192,482.44 = 53,567.08 : x - Step 2: Convert to fraction form
128,391.19/192,482.44 = 53,567.08/x - Step 3: Cross multiply
128,391.19x = 192,482.44 × 53,567.08 - Step 4: Simplify right side
128,391.19x = 10,310,722,262.08 - Step 5: Solve for x
x = 10,310,722,262.08/128,391.19 - Step 6: Final answer
x = 80,307.09
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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.