Finding the Fourth Proportional to 159,644.74, 220,311.30 and 88,027.60
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Solution
The fourth proportional to 159,644.74, 220,311.30 and 88,027.60 is: 121,478.95
Step by Step Solution
- Step 1: Write the proportion equation
159,644.74 : 220,311.30 = 88,027.60 : x - Step 2: Convert to fraction form
159,644.74/220,311.30 = 88,027.60/x - Step 3: Cross multiply
159,644.74x = 220,311.30 × 88,027.60 - Step 4: Simplify right side
159,644.74x = 19,393,474,991.88 - Step 5: Solve for x
x = 19,393,474,991.88/159,644.74 - Step 6: Final answer
x = 121,478.95
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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.