Finding the Fourth Proportional to 100,705.80, 151,107.30 and 71,059.80
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Solution
The fourth proportional to 100,705.80, 151,107.30 and 71,059.80 is: 106,623.99
Step by Step Solution
- Step 1: Write the proportion equation
100,705.80 : 151,107.30 = 71,059.80 : x - Step 2: Convert to fraction form
100,705.80/151,107.30 = 71,059.80/x - Step 3: Cross multiply
100,705.80x = 151,107.30 × 71,059.80 - Step 4: Simplify right side
100,705.80x = 10,737,654,516.54 - Step 5: Solve for x
x = 10,737,654,516.54/100,705.80 - Step 6: Final answer
x = 106,623.99
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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.