Finding the Fourth Proportional to 126,883.80, 190,325.70 and 121,051.80
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Solution
The fourth proportional to 126,883.80, 190,325.70 and 121,051.80 is: 181,577.70
Step by Step Solution
- Step 1: Write the proportion equation
126,883.80 : 190,325.70 = 121,051.80 : x - Step 2: Convert to fraction form
126,883.80/190,325.70 = 121,051.80/x - Step 3: Cross multiply
126,883.80x = 190,325.70 × 121,051.80 - Step 4: Simplify right side
126,883.80x = 23,039,268,571.26 - Step 5: Solve for x
x = 23,039,268,571.26/126,883.80 - Step 6: Final answer
x = 181,577.70
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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.