Finding the Fourth Proportional to 118,639.69, 177,957.49 and 29,891.23
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Solution
The fourth proportional to 118,639.69, 177,957.49 and 29,891.23 is: 44,836.33
Step by Step Solution
- Step 1: Write the proportion equation
118,639.69 : 177,957.49 = 29,891.23 : x - Step 2: Convert to fraction form
118,639.69/177,957.49 = 29,891.23/x - Step 3: Cross multiply
118,639.69x = 177,957.49 × 29,891.23 - Step 4: Simplify right side
118,639.69x = 5,319,368,263.81 - Step 5: Solve for x
x = 5,319,368,263.81/118,639.69 - Step 6: Final answer
x = 44,836.33
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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.