Finding the Fourth Proportional to 131,990.50, 182,147.70 and 75,434.68
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Solution
The fourth proportional to 131,990.50, 182,147.70 and 75,434.68 is: 104,100.32
Step by Step Solution
- Step 1: Write the proportion equation
131,990.50 : 182,147.70 = 75,434.68 : x - Step 2: Convert to fraction form
131,990.50/182,147.70 = 75,434.68/x - Step 3: Cross multiply
131,990.50x = 182,147.70 × 75,434.68 - Step 4: Simplify right side
131,990.50x = 13,740,253,462.24 - Step 5: Solve for x
x = 13,740,253,462.24/131,990.50 - Step 6: Final answer
x = 104,100.32
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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.