Finding the Fourth Proportional to 129,670.08, 194,505.12 and 31,174.08
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Solution
The fourth proportional to 129,670.08, 194,505.12 and 31,174.08 is: 46,761.12
Step by Step Solution
- Step 1: Write the proportion equation
129,670.08 : 194,505.12 = 31,174.08 : x - Step 2: Convert to fraction form
129,670.08/194,505.12 = 31,174.08/x - Step 3: Cross multiply
129,670.08x = 194,505.12 × 31,174.08 - Step 4: Simplify right side
129,670.08x = 6,063,518,171.29 - Step 5: Solve for x
x = 6,063,518,171.29/129,670.08 - Step 6: Final answer
x = 46,761.12
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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.