Finding the Fourth Proportional to 125,945.44, 173,781.84 and 75,645.28
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Solution
The fourth proportional to 125,945.44, 173,781.84 and 75,645.28 is: 104,376.75
Step by Step Solution
- Step 1: Write the proportion equation
125,945.44 : 173,781.84 = 75,645.28 : x - Step 2: Convert to fraction form
125,945.44/173,781.84 = 75,645.28/x - Step 3: Cross multiply
125,945.44x = 173,781.84 × 75,645.28 - Step 4: Simplify right side
125,945.44x = 13,145,775,945.72 - Step 5: Solve for x
x = 13,145,775,945.72/125,945.44 - Step 6: Final answer
x = 104,376.75
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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.