Finding the Fourth Proportional to 156,965.12, 235,442.43 and 68,218.62
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Solution
The fourth proportional to 156,965.12, 235,442.43 and 68,218.62 is: 102,325.65
Step by Step Solution
- Step 1: Write the proportion equation
156,965.12 : 235,442.43 = 68,218.62 : x - Step 2: Convert to fraction form
156,965.12/235,442.43 = 68,218.62/x - Step 3: Cross multiply
156,965.12x = 235,442.43 × 68,218.62 - Step 4: Simplify right side
156,965.12x = 16,061,557,664.05 - Step 5: Solve for x
x = 16,061,557,664.05/156,965.12 - 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.