Finding the Fourth Proportional to 126,845.20, 190,267.80 and 84,854.80
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Solution
The fourth proportional to 126,845.20, 190,267.80 and 84,854.80 is: 127,282.20
Step by Step Solution
- Step 1: Write the proportion equation
126,845.20 : 190,267.80 = 84,854.80 : x - Step 2: Convert to fraction form
126,845.20/190,267.80 = 84,854.80/x - Step 3: Cross multiply
126,845.20x = 190,267.80 × 84,854.80 - Step 4: Simplify right side
126,845.20x = 16,145,136,115.44 - Step 5: Solve for x
x = 16,145,136,115.44/126,845.20 - Step 6: Final answer
x = 127,282.20
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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.