Finding the Fourth Proportional to 100,951.82, 139,311.60 and 55,633.99
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Solution
The fourth proportional to 100,951.82, 139,311.60 and 55,633.99 is: 76,773.85
Step by Step Solution
- Step 1: Write the proportion equation
100,951.82 : 139,311.60 = 55,633.99 : x - Step 2: Convert to fraction form
100,951.82/139,311.60 = 55,633.99/x - Step 3: Cross multiply
100,951.82x = 139,311.60 × 55,633.99 - Step 4: Simplify right side
100,951.82x = 7,750,459,865.59 - Step 5: Solve for x
x = 7,750,459,865.59/100,951.82 - Step 6: Final answer
x = 76,773.85
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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.