Finding the Fourth Proportional to 136,013.26, 187,686.36 and 75,580.08
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Solution
The fourth proportional to 136,013.26, 187,686.36 and 75,580.08 is: 104,293.88
Step by Step Solution
- Step 1: Write the proportion equation
136,013.26 : 187,686.36 = 75,580.08 : x - Step 2: Convert to fraction form
136,013.26/187,686.36 = 75,580.08/x - Step 3: Cross multiply
136,013.26x = 187,686.36 × 75,580.08 - Step 4: Simplify right side
136,013.26x = 14,185,350,103.71 - Step 5: Solve for x
x = 14,185,350,103.71/136,013.26 - Step 6: Final answer
x = 104,293.88
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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.