Finding the Fourth Proportional to 134,879.96, 186,134.36 and 74,450.63
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Solution
The fourth proportional to 134,879.96, 186,134.36 and 74,450.63 is: 102,741.88
Step by Step Solution
- Step 1: Write the proportion equation
134,879.96 : 186,134.36 = 74,450.63 : x - Step 2: Convert to fraction form
134,879.96/186,134.36 = 74,450.63/x - Step 3: Cross multiply
134,879.96x = 186,134.36 × 74,450.63 - Step 4: Simplify right side
134,879.96x = 13,857,820,366.65 - Step 5: Solve for x
x = 13,857,820,366.65/134,879.96 - Step 6: Final answer
x = 102,741.88
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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.