Finding the Fourth Proportional to 156,902.20, 235,418.92 and 68,230.30
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Solution
The fourth proportional to 156,902.20, 235,418.92 and 68,230.30 is: 102,373.99
Step by Step Solution
- Step 1: Write the proportion equation
156,902.20 : 235,418.92 = 68,230.30 : x - Step 2: Convert to fraction form
156,902.20/235,418.92 = 68,230.30/x - Step 3: Cross multiply
156,902.20x = 235,418.92 × 68,230.30 - Step 4: Simplify right side
156,902.20x = 16,062,703,537.28 - Step 5: Solve for x
x = 16,062,703,537.28/156,902.20 - Step 6: Final answer
x = 102,373.99
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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.