Finding the Fourth Proportional to 142,794.96, 197,052.04 and 79,138.68
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Solution
The fourth proportional to 142,794.96, 197,052.04 and 79,138.68 is: 109,208.60
Step by Step Solution
- Step 1: Write the proportion equation
142,794.96 : 197,052.04 = 79,138.68 : x - Step 2: Convert to fraction form
142,794.96/197,052.04 = 79,138.68/x - Step 3: Cross multiply
142,794.96x = 197,052.04 × 79,138.68 - Step 4: Simplify right side
142,794.96x = 15,594,438,336.91 - Step 5: Solve for x
x = 15,594,438,336.91/142,794.96 - Step 6: Final answer
x = 109,208.60
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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.