Finding the Fourth Proportional to 135,269.80, 202,904.70 and 82,781.80
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Solution
The fourth proportional to 135,269.80, 202,904.70 and 82,781.80 is: 124,172.70
Step by Step Solution
- Step 1: Write the proportion equation
135,269.80 : 202,904.70 = 82,781.80 : x - Step 2: Convert to fraction form
135,269.80/202,904.70 = 82,781.80/x - Step 3: Cross multiply
135,269.80x = 202,904.70 × 82,781.80 - Step 4: Simplify right side
135,269.80x = 16,796,816,294.46 - Step 5: Solve for x
x = 16,796,816,294.46/135,269.80 - Step 6: Final answer
x = 124,172.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.