Finding the Fourth Proportional to 142,860.96, 197,152.92 and 79,194.96
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Solution
The fourth proportional to 142,860.96, 197,152.92 and 79,194.96 is: 109,291.70
Step by Step Solution
- Step 1: Write the proportion equation
142,860.96 : 197,152.92 = 79,194.96 : x - Step 2: Convert to fraction form
142,860.96/197,152.92 = 79,194.96/x - Step 3: Cross multiply
142,860.96x = 197,152.92 × 79,194.96 - Step 4: Simplify right side
142,860.96x = 15,613,517,613.28 - Step 5: Solve for x
x = 15,613,517,613.28/142,860.96 - Step 6: Final answer
x = 109,291.70
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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.