Finding the Fourth Proportional to 135,820.05, 187,422.57 and 82,134.66
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Solution
The fourth proportional to 135,820.05, 187,422.57 and 82,134.66 is: 113,340.33
Step by Step Solution
- Step 1: Write the proportion equation
135,820.05 : 187,422.57 = 82,134.66 : x - Step 2: Convert to fraction form
135,820.05/187,422.57 = 82,134.66/x - Step 3: Cross multiply
135,820.05x = 187,422.57 × 82,134.66 - Step 4: Simplify right side
135,820.05x = 15,393,889,063.28 - Step 5: Solve for x
x = 15,393,889,063.28/135,820.05 - Step 6: Final answer
x = 113,340.33
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1.5x scale
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.