Finding the Fourth Proportional to 125,717.26, 187,391.60 and 115,628.18
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Solution
The fourth proportional to 125,717.26, 187,391.60 and 115,628.18 is: 172,353.02
Step by Step Solution
- Step 1: Write the proportion equation
125,717.26 : 187,391.60 = 115,628.18 : x - Step 2: Convert to fraction form
125,717.26/187,391.60 = 115,628.18/x - Step 3: Cross multiply
125,717.26x = 187,391.60 × 115,628.18 - Step 4: Simplify right side
125,717.26x = 21,667,749,655.29 - Step 5: Solve for x
x = 21,667,749,655.29/125,717.26 - Step 6: Final answer
x = 172,353.02
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.