Finding the Fourth Proportional to 156,343.77, 215,754.72 and 84,723.84
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Solution
The fourth proportional to 156,343.77, 215,754.72 and 84,723.84 is: 116,919.07
Step by Step Solution
- Step 1: Write the proportion equation
156,343.77 : 215,754.72 = 84,723.84 : x - Step 2: Convert to fraction form
156,343.77/215,754.72 = 84,723.84/x - Step 3: Cross multiply
156,343.77x = 215,754.72 × 84,723.84 - Step 4: Simplify right side
156,343.77x = 18,279,568,376.52 - Step 5: Solve for x
x = 18,279,568,376.52/156,343.77 - Step 6: Final answer
x = 116,919.07
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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.