Finding the Fourth Proportional to 146,136.75, 201,668.73 and 79,068.75
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Solution
The fourth proportional to 146,136.75, 201,668.73 and 79,068.75 is: 109,114.88
Step by Step Solution
- Step 1: Write the proportion equation
146,136.75 : 201,668.73 = 79,068.75 : x - Step 2: Convert to fraction form
146,136.75/201,668.73 = 79,068.75/x - Step 3: Cross multiply
146,136.75x = 201,668.73 × 79,068.75 - Step 4: Simplify right side
146,136.75x = 15,945,694,395.19 - Step 5: Solve for x
x = 15,945,694,395.19/146,136.75 - Step 6: Final answer
x = 109,114.88
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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.