Finding the Fourth Proportional to 111,220.88, 153,495.84 and 63,481.44
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Solution
The fourth proportional to 111,220.88, 153,495.84 and 63,481.44 is: 87,610.68
Step by Step Solution
- Step 1: Write the proportion equation
111,220.88 : 153,495.84 = 63,481.44 : x - Step 2: Convert to fraction form
111,220.88/153,495.84 = 63,481.44/x - Step 3: Cross multiply
111,220.88x = 153,495.84 × 63,481.44 - Step 4: Simplify right side
111,220.88x = 9,744,136,957.21 - Step 5: Solve for x
x = 9,744,136,957.21/111,220.88 - Step 6: Final answer
x = 87,610.68
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Double scale
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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.