Finding the Fourth Proportional to 106,769.55, 160,165.26 and 36,639.75
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Solution
The fourth proportional to 106,769.55, 160,165.26 and 36,639.75 is: 54,963.38
Step by Step Solution
- Step 1: Write the proportion equation
106,769.55 : 160,165.26 = 36,639.75 : x - Step 2: Convert to fraction form
106,769.55/160,165.26 = 36,639.75/x - Step 3: Cross multiply
106,769.55x = 160,165.26 × 36,639.75 - Step 4: Simplify right side
106,769.55x = 5,868,415,085.09 - Step 5: Solve for x
x = 5,868,415,085.09/106,769.55 - Step 6: Final answer
x = 54,963.38
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.