Finding the Fourth Proportional to 149,524.57, 206,341.32 and 81,542.08
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Solution
The fourth proportional to 149,524.57, 206,341.32 and 81,542.08 is: 112,526.66
Step by Step Solution
- Step 1: Write the proportion equation
149,524.57 : 206,341.32 = 81,542.08 : x - Step 2: Convert to fraction form
149,524.57/206,341.32 = 81,542.08/x - Step 3: Cross multiply
149,524.57x = 206,341.32 × 81,542.08 - Step 4: Simplify right side
149,524.57x = 16,825,500,422.75 - Step 5: Solve for x
x = 16,825,500,422.75/149,524.57 - Step 6: Final answer
x = 112,526.66
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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.