Finding the Fourth Proportional to 160,699.21, 221,789.48 and 102,581.03
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Solution
The fourth proportional to 160,699.21, 221,789.48 and 102,581.03 is: 141,577.51
Step by Step Solution
- Step 1: Write the proportion equation
160,699.21 : 221,789.48 = 102,581.03 : x - Step 2: Convert to fraction form
160,699.21/221,789.48 = 102,581.03/x - Step 3: Cross multiply
160,699.21x = 221,789.48 × 102,581.03 - Step 4: Simplify right side
160,699.21x = 22,751,393,343.13 - Step 5: Solve for x
x = 22,751,393,343.13/160,699.21 - Step 6: Final answer
x = 141,577.51
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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.