Finding the Fourth Proportional to 159,573.70, 220,216.62 and 91,603.09
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Solution
The fourth proportional to 159,573.70, 220,216.62 and 91,603.09 is: 126,415.09
Step by Step Solution
- Step 1: Write the proportion equation
159,573.70 : 220,216.62 = 91,603.09 : x - Step 2: Convert to fraction form
159,573.70/220,216.62 = 91,603.09/x - Step 3: Cross multiply
159,573.70x = 220,216.62 × 91,603.09 - Step 4: Simplify right side
159,573.70x = 20,172,522,861.36 - Step 5: Solve for x
x = 20,172,522,861.36/159,573.70 - Step 6: Final answer
x = 126,415.09
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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.