Finding the Fourth Proportional to 103,792.59, 143,236.76 and 58,471.07
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Solution
The fourth proportional to 103,792.59, 143,236.76 and 58,471.07 is: 80,691.75
Step by Step Solution
- Step 1: Write the proportion equation
103,792.59 : 143,236.76 = 58,471.07 : x - Step 2: Convert to fraction form
103,792.59/143,236.76 = 58,471.07/x - Step 3: Cross multiply
103,792.59x = 143,236.76 × 58,471.07 - Step 4: Simplify right side
103,792.59x = 8,375,205,611.99 - Step 5: Solve for x
x = 8,375,205,611.99/103,792.59 - Step 6: Final answer
x = 80,691.75
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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.