Finding the Fourth Proportional to 156,906.20, 235,424.92 and 68,234.30
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Solution
The fourth proportional to 156,906.20, 235,424.92 and 68,234.30 is: 102,379.99
Step by Step Solution
- Step 1: Write the proportion equation
156,906.20 : 235,424.92 = 68,234.30 : x - Step 2: Convert to fraction form
156,906.20/235,424.92 = 68,234.30/x - Step 3: Cross multiply
156,906.20x = 235,424.92 × 68,234.30 - Step 4: Simplify right side
156,906.20x = 16,064,054,618.76 - Step 5: Solve for x
x = 16,064,054,618.76/156,906.20 - Step 6: Final answer
x = 102,379.99
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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.