Finding the Fourth Proportional to 118,428.68, 177,555.18 and 71,670.44
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Solution
The fourth proportional to 118,428.68, 177,555.18 and 71,670.44 is: 107,452.50
Step by Step Solution
- Step 1: Write the proportion equation
118,428.68 : 177,555.18 = 71,670.44 : x - Step 2: Convert to fraction form
118,428.68/177,555.18 = 71,670.44/x - Step 3: Cross multiply
118,428.68x = 177,555.18 × 71,670.44 - Step 4: Simplify right side
118,428.68x = 12,725,457,874.88 - Step 5: Solve for x
x = 12,725,457,874.88/118,428.68 - Step 6: Final answer
x = 107,452.50
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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.