Finding the Fourth Proportional to 125,503.82, 187,785.18 and 74,717.08
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Solution
The fourth proportional to 125,503.82, 187,785.18 and 74,717.08 is: 111,795.48
Step by Step Solution
- Step 1: Write the proportion equation
125,503.82 : 187,785.18 = 74,717.08 : x - Step 2: Convert to fraction form
125,503.82/187,785.18 = 74,717.08/x - Step 3: Cross multiply
125,503.82x = 187,785.18 × 74,717.08 - Step 4: Simplify right side
125,503.82x = 14,030,759,847.41 - Step 5: Solve for x
x = 14,030,759,847.41/125,503.82 - Step 6: Final answer
x = 111,795.48
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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.