Finding the Fourth Proportional to 125,615.08, 173,175.60 and 100,207.68
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Solution
The fourth proportional to 125,615.08, 173,175.60 and 100,207.68 is: 138,148.42
Step by Step Solution
- Step 1: Write the proportion equation
125,615.08 : 173,175.60 = 100,207.68 : x - Step 2: Convert to fraction form
125,615.08/173,175.60 = 100,207.68/x - Step 3: Cross multiply
125,615.08x = 173,175.60 × 100,207.68 - Step 4: Simplify right side
125,615.08x = 17,353,525,108.61 - Step 5: Solve for x
x = 17,353,525,108.61/125,615.08 - Step 6: Final answer
x = 138,148.42
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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.