Finding the Fourth Proportional to 115,311.09, 172,966.94 and 32,205.09
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Solution
The fourth proportional to 115,311.09, 172,966.94 and 32,205.09 is: 48,307.73
Step by Step Solution
- Step 1: Write the proportion equation
115,311.09 : 172,966.94 = 32,205.09 : x - Step 2: Convert to fraction form
115,311.09/172,966.94 = 32,205.09/x - Step 3: Cross multiply
115,311.09x = 172,966.94 × 32,205.09 - Step 4: Simplify right side
115,311.09x = 5,570,416,659.25 - Step 5: Solve for x
x = 5,570,416,659.25/115,311.09 - Step 6: Final answer
x = 48,307.73
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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.