Finding the Fourth Proportional to 129,245.24, 193,904.70 and 54,326.68
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Solution
The fourth proportional to 129,245.24, 193,904.70 and 54,326.68 is: 81,505.51
Step by Step Solution
- Step 1: Write the proportion equation
129,245.24 : 193,904.70 = 54,326.68 : x - Step 2: Convert to fraction form
129,245.24/193,904.70 = 54,326.68/x - Step 3: Cross multiply
129,245.24x = 193,904.70 × 54,326.68 - Step 4: Simplify right side
129,245.24x = 10,534,198,587.40 - Step 5: Solve for x
x = 10,534,198,587.40/129,245.24 - Step 6: Final answer
x = 81,505.51
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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.