Finding the Fourth Proportional to 136,632.80, 188,567.76 and 80,091.68
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Solution
The fourth proportional to 136,632.80, 188,567.76 and 80,091.68 is: 110,535.02
Step by Step Solution
- Step 1: Write the proportion equation
136,632.80 : 188,567.76 = 80,091.68 : x - Step 2: Convert to fraction form
136,632.80/188,567.76 = 80,091.68/x - Step 3: Cross multiply
136,632.80x = 188,567.76 × 80,091.68 - Step 4: Simplify right side
136,632.80x = 15,102,708,692.24 - Step 5: Solve for x
x = 15,102,708,692.24/136,632.80 - Step 6: Final answer
x = 110,535.02
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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.