Finding the Fourth Proportional to 135,046.26, 186,338.32 and 81,334.75
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Solution
The fourth proportional to 135,046.26, 186,338.32 and 81,334.75 is: 112,226.59
Step by Step Solution
- Step 1: Write the proportion equation
135,046.26 : 186,338.32 = 81,334.75 : x - Step 2: Convert to fraction form
135,046.26/186,338.32 = 81,334.75/x - Step 3: Cross multiply
135,046.26x = 186,338.32 × 81,334.75 - Step 4: Simplify right side
135,046.26x = 15,155,780,672.62 - Step 5: Solve for x
x = 15,155,780,672.62/135,046.26 - Step 6: Final answer
x = 112,226.59
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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.