Finding the Fourth Proportional to 107,292.36, 160,876.17 and 71,794.26
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Solution
The fourth proportional to 107,292.36, 160,876.17 and 71,794.26 is: 107,649.66
Step by Step Solution
- Step 1: Write the proportion equation
107,292.36 : 160,876.17 = 71,794.26 : x - Step 2: Convert to fraction form
107,292.36/160,876.17 = 71,794.26/x - Step 3: Cross multiply
107,292.36x = 160,876.17 × 71,794.26 - Step 4: Simplify right side
107,292.36x = 11,549,985,576.78 - Step 5: Solve for x
x = 11,549,985,576.78/107,292.36 - Step 6: Final answer
x = 107,649.66
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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.