Finding the Fourth Proportional to 136,773.19, 188,778.50 and 80,202.79
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Solution
The fourth proportional to 136,773.19, 188,778.50 and 80,202.79 is: 110,698.32
Step by Step Solution
- Step 1: Write the proportion equation
136,773.19 : 188,778.50 = 80,202.79 : x - Step 2: Convert to fraction form
136,773.19/188,778.50 = 80,202.79/x - Step 3: Cross multiply
136,773.19x = 188,778.50 × 80,202.79 - Step 4: Simplify right side
136,773.19x = 15,140,562,392.02 - Step 5: Solve for x
x = 15,140,562,392.02/136,773.19 - Step 6: Final answer
x = 110,698.32
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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.