Finding the Fourth Proportional to 105,057.80, 144,986.60 and 59,739.99
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Solution
The fourth proportional to 105,057.80, 144,986.60 and 59,739.99 is: 82,445.08
Step by Step Solution
- Step 1: Write the proportion equation
105,057.80 : 144,986.60 = 59,739.99 : x - Step 2: Convert to fraction form
105,057.80/144,986.60 = 59,739.99/x - Step 3: Cross multiply
105,057.80x = 144,986.60 × 59,739.99 - Step 4: Simplify right side
105,057.80x = 8,661,498,183.48 - Step 5: Solve for x
x = 8,661,498,183.48/105,057.80 - Step 6: Final answer
x = 82,445.08
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.