Finding the Fourth Proportional to 156,916.25, 235,241.70 and 68,102.99
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Solution
The fourth proportional to 156,916.25, 235,241.70 and 68,102.99 is: 102,096.90
Step by Step Solution
- Step 1: Write the proportion equation
156,916.25 : 235,241.70 = 68,102.99 : x - Step 2: Convert to fraction form
156,916.25/235,241.70 = 68,102.99/x - Step 3: Cross multiply
156,916.25x = 235,241.70 × 68,102.99 - Step 4: Simplify right side
156,916.25x = 16,020,663,142.68 - Step 5: Solve for x
x = 16,020,663,142.68/156,916.25 - Step 6: Final answer
x = 102,096.90
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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.