Finding the Fourth Proportional to 146,175.75, 201,722.55 and 79,107.75
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Solution
The fourth proportional to 146,175.75, 201,722.55 and 79,107.75 is: 109,168.70
Step by Step Solution
- Step 1: Write the proportion equation
146,175.75 : 201,722.55 = 79,107.75 : x - Step 2: Convert to fraction form
146,175.75/201,722.55 = 79,107.75/x - Step 3: Cross multiply
146,175.75x = 201,722.55 × 79,107.75 - Step 4: Simplify right side
146,175.75x = 15,957,817,054.76 - Step 5: Solve for x
x = 15,957,817,054.76/146,175.75 - Step 6: Final answer
x = 109,168.70
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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.