Finding the Fourth Proportional to 118,638.16, 177,833.26 and 39,687.44
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Solution
The fourth proportional to 118,638.16, 177,833.26 and 39,687.44 is: 59,489.69
Step by Step Solution
- Step 1: Write the proportion equation
118,638.16 : 177,833.26 = 39,687.44 : x - Step 2: Convert to fraction form
118,638.16/177,833.26 = 39,687.44/x - Step 3: Cross multiply
118,638.16x = 177,833.26 × 39,687.44 - Step 4: Simplify right side
118,638.16x = 7,057,746,836.25 - Step 5: Solve for x
x = 7,057,746,836.25/118,638.16 - Step 6: Final answer
x = 59,489.69
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1.5x scale
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.