Finding the Fourth Proportional to 134,879.77, 186,134.11 and 74,450.44
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Solution
The fourth proportional to 134,879.77, 186,134.11 and 74,450.44 is: 102,741.62
Step by Step Solution
- Step 1: Write the proportion equation
134,879.77 : 186,134.11 = 74,450.44 : x - Step 2: Convert to fraction form
134,879.77/186,134.11 = 74,450.44/x - Step 3: Cross multiply
134,879.77x = 186,134.11 × 74,450.44 - Step 4: Simplify right side
134,879.77x = 13,857,766,388.51 - Step 5: Solve for x
x = 13,857,766,388.51/134,879.77 - Step 6: Final answer
x = 102,741.62
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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.