Finding the Fourth Proportional to 141,957.36, 212,673.60 and 71,668.80
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Solution
The fourth proportional to 141,957.36, 212,673.60 and 71,668.80 is: 107,370.70
Step by Step Solution
- Step 1: Write the proportion equation
141,957.36 : 212,673.60 = 71,668.80 : x - Step 2: Convert to fraction form
141,957.36/212,673.60 = 71,668.80/x - Step 3: Cross multiply
141,957.36x = 212,673.60 × 71,668.80 - Step 4: Simplify right side
141,957.36x = 15,242,061,703.68 - Step 5: Solve for x
x = 15,242,061,703.68/141,957.36 - Step 6: Final answer
x = 107,370.70
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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.