Finding the Fourth Proportional to 118,343.84, 177,517.32 and 39,458.09
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Solution
The fourth proportional to 118,343.84, 177,517.32 and 39,458.09 is: 59,187.65
Step by Step Solution
- Step 1: Write the proportion equation
118,343.84 : 177,517.32 = 39,458.09 : x - Step 2: Convert to fraction form
118,343.84/177,517.32 = 39,458.09/x - Step 3: Cross multiply
118,343.84x = 177,517.32 × 39,458.09 - Step 4: Simplify right side
118,343.84x = 7,004,493,908.36 - Step 5: Solve for x
x = 7,004,493,908.36/118,343.84 - Step 6: Final answer
x = 59,187.65
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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.