Finding the Fourth Proportional to 136,533.39, 188,412.93 and 79,182.96
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Solution
The fourth proportional to 136,533.39, 188,412.93 and 79,182.96 is: 109,270.66
Step by Step Solution
- Step 1: Write the proportion equation
136,533.39 : 188,412.93 = 79,182.96 : x - Step 2: Convert to fraction form
136,533.39/188,412.93 = 79,182.96/x - Step 3: Cross multiply
136,533.39x = 188,412.93 × 79,182.96 - Step 4: Simplify right side
136,533.39x = 14,919,093,499.67 - Step 5: Solve for x
x = 14,919,093,499.67/136,533.39 - Step 6: Final answer
x = 109,270.66
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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.