Finding the Fourth Proportional to 156,965.10, 235,442.40 and 68,218.62
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Solution
The fourth proportional to 156,965.10, 235,442.40 and 68,218.62 is: 102,325.65
Step by Step Solution
- Step 1: Write the proportion equation
156,965.10 : 235,442.40 = 68,218.62 : x - Step 2: Convert to fraction form
156,965.10/235,442.40 = 68,218.62/x - Step 3: Cross multiply
156,965.10x = 235,442.40 × 68,218.62 - Step 4: Simplify right side
156,965.10x = 16,061,555,617.49 - Step 5: Solve for x
x = 16,061,555,617.49/156,965.10 - Step 6: Final answer
x = 102,325.65
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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.