Finding the Fourth Proportional to 100,944.12, 139,307.58 and 58,515.96
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Solution
The fourth proportional to 100,944.12, 139,307.58 and 58,515.96 is: 80,754.75
Step by Step Solution
- Step 1: Write the proportion equation
100,944.12 : 139,307.58 = 58,515.96 : x - Step 2: Convert to fraction form
100,944.12/139,307.58 = 58,515.96/x - Step 3: Cross multiply
100,944.12x = 139,307.58 × 58,515.96 - Step 4: Simplify right side
100,944.12x = 8,151,716,778.98 - Step 5: Solve for x
x = 8,151,716,778.98/100,944.12 - Step 6: Final answer
x = 80,754.75
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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.