Finding the Fourth Proportional to 156,968.70, 235,447.77 and 68,222.19
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Solution
The fourth proportional to 156,968.70, 235,447.77 and 68,222.19 is: 102,330.99
Step by Step Solution
- Step 1: Write the proportion equation
156,968.70 : 235,447.77 = 68,222.19 : x - Step 2: Convert to fraction form
156,968.70/235,447.77 = 68,222.19/x - Step 3: Cross multiply
156,968.70x = 235,447.77 × 68,222.19 - Step 4: Simplify right side
156,968.70x = 16,062,762,500.02 - Step 5: Solve for x
x = 16,062,762,500.02/156,968.70 - Step 6: Final answer
x = 102,330.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.