Finding the Fourth Proportional to 156,918.75, 235,245.45 and 68,105.49
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Solution
The fourth proportional to 156,918.75, 235,245.45 and 68,105.49 is: 102,100.65
Step by Step Solution
- Step 1: Write the proportion equation
156,918.75 : 235,245.45 = 68,105.49 : x - Step 2: Convert to fraction form
156,918.75/235,245.45 = 68,105.49/x - Step 3: Cross multiply
156,918.75x = 235,245.45 × 68,105.49 - Step 4: Simplify right side
156,918.75x = 16,021,506,642.52 - Step 5: Solve for x
x = 16,021,506,642.52/156,918.75 - Step 6: Final answer
x = 102,100.65
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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.