Finding the Fourth Proportional to 145,939.70, 201,394.05 and 82,277.48
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Solution
The fourth proportional to 145,939.70, 201,394.05 and 82,277.48 is: 113,541.38
Step by Step Solution
- Step 1: Write the proportion equation
145,939.70 : 201,394.05 = 82,277.48 : x - Step 2: Convert to fraction form
145,939.70/201,394.05 = 82,277.48/x - Step 3: Cross multiply
145,939.70x = 201,394.05 × 82,277.48 - Step 4: Simplify right side
145,939.70x = 16,570,194,920.99 - Step 5: Solve for x
x = 16,570,194,920.99/145,939.70 - Step 6: Final answer
x = 113,541.38
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1.5x scale
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.