Finding the Fourth Proportional to 142,494.24, 196,511.76 and 122,344.68
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Solution
The fourth proportional to 142,494.24, 196,511.76 and 122,344.68 is: 168,723.79
Step by Step Solution
- Step 1: Write the proportion equation
142,494.24 : 196,511.76 = 122,344.68 : x - Step 2: Convert to fraction form
142,494.24/196,511.76 = 122,344.68/x - Step 3: Cross multiply
142,494.24x = 196,511.76 × 122,344.68 - Step 4: Simplify right side
142,494.24x = 24,042,168,393.44 - Step 5: Solve for x
x = 24,042,168,393.44/142,494.24 - Step 6: Final answer
x = 168,723.79
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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.