Finding the Fourth Proportional to 100,811.57, 151,217.78 and 40,841.21
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Solution
The fourth proportional to 100,811.57, 151,217.78 and 40,841.21 is: 61,261.99
Step by Step Solution
- Step 1: Write the proportion equation
100,811.57 : 151,217.78 = 40,841.21 : x - Step 2: Convert to fraction form
100,811.57/151,217.78 = 40,841.21/x - Step 3: Cross multiply
100,811.57x = 151,217.78 × 40,841.21 - Step 4: Simplify right side
100,811.57x = 6,175,917,005.10 - Step 5: Solve for x
x = 6,175,917,005.10/100,811.57 - Step 6: Final answer
x = 61,261.99
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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.