Finding the Fourth Proportional to 135,938.10, 203,879.25 and 51,668.76
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Solution
The fourth proportional to 135,938.10, 203,879.25 and 51,668.76 is: 77,492.54
Step by Step Solution
- Step 1: Write the proportion equation
135,938.10 : 203,879.25 = 51,668.76 : x - Step 2: Convert to fraction form
135,938.10/203,879.25 = 51,668.76/x - Step 3: Cross multiply
135,938.10x = 203,879.25 × 51,668.76 - Step 4: Simplify right side
135,938.10x = 10,534,188,037.23 - Step 5: Solve for x
x = 10,534,188,037.23/135,938.10 - Step 6: Final answer
x = 77,492.54
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1.5x scale
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.