Finding the Fourth Proportional to 118,701.20, 177,706.20 and 115,245.20
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Solution
The fourth proportional to 118,701.20, 177,706.20 and 115,245.20 is: 172,532.26
Step by Step Solution
- Step 1: Write the proportion equation
118,701.20 : 177,706.20 = 115,245.20 : x - Step 2: Convert to fraction form
118,701.20/177,706.20 = 115,245.20/x - Step 3: Cross multiply
118,701.20x = 177,706.20 × 115,245.20 - Step 4: Simplify right side
118,701.20x = 20,479,786,560.24 - Step 5: Solve for x
x = 20,479,786,560.24/118,701.20 - Step 6: Final answer
x = 172,532.26
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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.