Finding the Fourth Proportional to 131,670.75, 181,706.00 and 72,054.75
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Solution
The fourth proportional to 131,670.75, 181,706.00 and 72,054.75 is: 99,435.75
Step by Step Solution
- Step 1: Write the proportion equation
131,670.75 : 181,706.00 = 72,054.75 : x - Step 2: Convert to fraction form
131,670.75/181,706.00 = 72,054.75/x - Step 3: Cross multiply
131,670.75x = 181,706.00 × 72,054.75 - Step 4: Simplify right side
131,670.75x = 13,092,780,043.23 - Step 5: Solve for x
x = 13,092,780,043.23/131,670.75 - Step 6: Final answer
x = 99,435.75
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.