Finding the Fourth Proportional to 126,135.64, 189,226.77 and 36,174.58
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Solution
The fourth proportional to 126,135.64, 189,226.77 and 36,174.58 is: 54,268.56
Step by Step Solution
- Step 1: Write the proportion equation
126,135.64 : 189,226.77 = 36,174.58 : x - Step 2: Convert to fraction form
126,135.64/189,226.77 = 36,174.58/x - Step 3: Cross multiply
126,135.64x = 189,226.77 × 36,174.58 - Step 4: Simplify right side
126,135.64x = 6,845,198,929.51 - Step 5: Solve for x
x = 6,845,198,929.51/126,135.64 - Step 6: Final answer
x = 54,268.56
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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.