Finding the Fourth Proportional to 133,245.03, 183,872.64 and 72,817.68
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Solution
The fourth proportional to 133,245.03, 183,872.64 and 72,817.68 is: 100,485.39
Step by Step Solution
- Step 1: Write the proportion equation
133,245.03 : 183,872.64 = 72,817.68 : x - Step 2: Convert to fraction form
133,245.03/183,872.64 = 72,817.68/x - Step 3: Cross multiply
133,245.03x = 183,872.64 × 72,817.68 - Step 4: Simplify right side
133,245.03x = 13,389,179,060.28 - Step 5: Solve for x
x = 13,389,179,060.28/133,245.03 - Step 6: Final answer
x = 100,485.39
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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.