Finding the Fourth Proportional to 159,211.80, 219,706.74 and 87,591.08
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Solution
The fourth proportional to 159,211.80, 219,706.74 and 87,591.08 is: 120,872.64
Step by Step Solution
- Step 1: Write the proportion equation
159,211.80 : 219,706.74 = 87,591.08 : x - Step 2: Convert to fraction form
159,211.80/219,706.74 = 87,591.08/x - Step 3: Cross multiply
159,211.80x = 219,706.74 × 87,591.08 - Step 4: Simplify right side
159,211.80x = 19,244,350,639.88 - Step 5: Solve for x
x = 19,244,350,639.88/159,211.80 - Step 6: Final answer
x = 120,872.64
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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.