Finding the Fourth Proportional to 118,207.20, 177,310.80 and 94,879.20
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Solution
The fourth proportional to 118,207.20, 177,310.80 and 94,879.20 is: 142,318.80
Step by Step Solution
- Step 1: Write the proportion equation
118,207.20 : 177,310.80 = 94,879.20 : x - Step 2: Convert to fraction form
118,207.20/177,310.80 = 94,879.20/x - Step 3: Cross multiply
118,207.20x = 177,310.80 × 94,879.20 - Step 4: Simplify right side
118,207.20x = 16,823,106,855.36 - Step 5: Solve for x
x = 16,823,106,855.36/118,207.20 - Step 6: Final answer
x = 142,318.80
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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.