Finding the Fourth Proportional to 126,074.80, 173,984.28 and 69,486.32
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Solution
The fourth proportional to 126,074.80, 173,984.28 and 69,486.32 is: 95,891.70
Step by Step Solution
- Step 1: Write the proportion equation
126,074.80 : 173,984.28 = 69,486.32 : x - Step 2: Convert to fraction form
126,074.80/173,984.28 = 69,486.32/x - Step 3: Cross multiply
126,074.80x = 173,984.28 × 69,486.32 - Step 4: Simplify right side
126,074.80x = 12,089,527,355.05 - Step 5: Solve for x
x = 12,089,527,355.05/126,074.80 - Step 6: Final answer
x = 95,891.70
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1.5x scale
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.