Finding the Fourth Proportional to 135,197.92, 186,569.76 and 74,771.92
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Solution
The fourth proportional to 135,197.92, 186,569.76 and 74,771.92 is: 103,183.39
Step by Step Solution
- Step 1: Write the proportion equation
135,197.92 : 186,569.76 = 74,771.92 : x - Step 2: Convert to fraction form
135,197.92/186,569.76 = 74,771.92/x - Step 3: Cross multiply
135,197.92x = 186,569.76 × 74,771.92 - Step 4: Simplify right side
135,197.92x = 13,950,179,169.14 - Step 5: Solve for x
x = 13,950,179,169.14/135,197.92 - Step 6: Final answer
x = 103,183.39
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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.