Finding the Fourth Proportional to 100,405.62, 150,370.97 and 87,186.15
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Solution
The fourth proportional to 100,405.62, 150,370.97 and 87,186.15 is: 130,573.02
Step by Step Solution
- Step 1: Write the proportion equation
100,405.62 : 150,370.97 = 87,186.15 : x - Step 2: Convert to fraction form
100,405.62/150,370.97 = 87,186.15/x - Step 3: Cross multiply
100,405.62x = 150,370.97 × 87,186.15 - Step 4: Simplify right side
100,405.62x = 13,110,265,510.13 - Step 5: Solve for x
x = 13,110,265,510.13/100,405.62 - Step 6: Final answer
x = 130,573.02
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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.