Finding the Fourth Proportional to 136,771.63, 188,776.35 and 80,201.23
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Solution
The fourth proportional to 136,771.63, 188,776.35 and 80,201.23 is: 110,696.17
Step by Step Solution
- Step 1: Write the proportion equation
136,771.63 : 188,776.35 = 80,201.23 : x - Step 2: Convert to fraction form
136,771.63/188,776.35 = 80,201.23/x - Step 3: Cross multiply
136,771.63x = 188,776.35 × 80,201.23 - Step 4: Simplify right side
136,771.63x = 15,140,095,464.91 - Step 5: Solve for x
x = 15,140,095,464.91/136,771.63 - Step 6: Final answer
x = 110,696.17
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.