Finding the Fourth Proportional to 142,027.26, 212,837.82 and 104,291.28
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Solution
The fourth proportional to 142,027.26, 212,837.82 and 104,291.28 is: 156,287.80
Step by Step Solution
- Step 1: Write the proportion equation
142,027.26 : 212,837.82 = 104,291.28 : x - Step 2: Convert to fraction form
142,027.26/212,837.82 = 104,291.28/x - Step 3: Cross multiply
142,027.26x = 212,837.82 × 104,291.28 - Step 4: Simplify right side
142,027.26x = 22,197,128,680.21 - Step 5: Solve for x
x = 22,197,128,680.21/142,027.26 - Step 6: Final answer
x = 156,287.80
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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.