Finding the Fourth Proportional to 107,311.42, 160,991.43 and 57,365.20
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Solution
The fourth proportional to 107,311.42, 160,991.43 and 57,365.20 is: 86,060.79
Step by Step Solution
- Step 1: Write the proportion equation
107,311.42 : 160,991.43 = 57,365.20 : x - Step 2: Convert to fraction form
107,311.42/160,991.43 = 57,365.20/x - Step 3: Cross multiply
107,311.42x = 160,991.43 × 57,365.20 - Step 4: Simplify right side
107,311.42x = 9,235,305,580.24 - Step 5: Solve for x
x = 9,235,305,580.24/107,311.42 - Step 6: Final answer
x = 86,060.79
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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.