Finding the Fourth Proportional to 154,708.68, 213,269.85 and 120,678.96
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Solution
The fourth proportional to 154,708.68, 213,269.85 and 120,678.96 is: 166,359.02
Step by Step Solution
- Step 1: Write the proportion equation
154,708.68 : 213,269.85 = 120,678.96 : x - Step 2: Convert to fraction form
154,708.68/213,269.85 = 120,678.96/x - Step 3: Cross multiply
154,708.68x = 213,269.85 × 120,678.96 - Step 4: Simplify right side
154,708.68x = 25,737,183,697.36 - Step 5: Solve for x
x = 25,737,183,697.36/154,708.68 - Step 6: Final answer
x = 166,359.02
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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.