Finding the Fourth Proportional to 132,854.39, 199,111.46 and 72,881.99
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Solution
The fourth proportional to 132,854.39, 199,111.46 and 72,881.99 is: 109,229.66
Step by Step Solution
- Step 1: Write the proportion equation
132,854.39 : 199,111.46 = 72,881.99 : x - Step 2: Convert to fraction form
132,854.39/199,111.46 = 72,881.99/x - Step 3: Cross multiply
132,854.39x = 199,111.46 × 72,881.99 - Step 4: Simplify right side
132,854.39x = 14,511,639,436.61 - Step 5: Solve for x
x = 14,511,639,436.61/132,854.39 - Step 6: Final answer
x = 109,229.66
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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.