Finding the Fourth Proportional to 149,117.75, 205,782.50 and 82,049.75
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Solution
The fourth proportional to 149,117.75, 205,782.50 and 82,049.75 is: 113,228.66
Step by Step Solution
- Step 1: Write the proportion equation
149,117.75 : 205,782.50 = 82,049.75 : x - Step 2: Convert to fraction form
149,117.75/205,782.50 = 82,049.75/x - Step 3: Cross multiply
149,117.75x = 205,782.50 × 82,049.75 - Step 4: Simplify right side
149,117.75x = 16,884,402,269.13 - Step 5: Solve for x
x = 16,884,402,269.13/149,117.75 - Step 6: Final answer
x = 113,228.66
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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.