Finding the Fourth Proportional to 136,663.28, 188,595.62 and 76,232.36
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Solution
The fourth proportional to 136,663.28, 188,595.62 and 76,232.36 is: 105,200.82
Step by Step Solution
- Step 1: Write the proportion equation
136,663.28 : 188,595.62 = 76,232.36 : x - Step 2: Convert to fraction form
136,663.28/188,595.62 = 76,232.36/x - Step 3: Cross multiply
136,663.28x = 188,595.62 × 76,232.36 - Step 4: Simplify right side
136,663.28x = 14,377,089,198.26 - Step 5: Solve for x
x = 14,377,089,198.26/136,663.28 - Step 6: Final answer
x = 105,200.82
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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.