Finding the Fourth Proportional to 103,715.78, 155,588.68 and 44,550.96
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Solution
The fourth proportional to 103,715.78, 155,588.68 and 44,550.96 is: 66,832.89
Step by Step Solution
- Step 1: Write the proportion equation
103,715.78 : 155,588.68 = 44,550.96 : x - Step 2: Convert to fraction form
103,715.78/155,588.68 = 44,550.96/x - Step 3: Cross multiply
103,715.78x = 155,588.68 × 44,550.96 - Step 4: Simplify right side
103,715.78x = 6,931,625,059.13 - Step 5: Solve for x
x = 6,931,625,059.13/103,715.78 - Step 6: Final answer
x = 66,832.89
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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.