Finding the Fourth Proportional to 134,528.20, 201,529.86 and 81,806.92
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Solution
The fourth proportional to 134,528.20, 201,529.86 and 81,806.92 is: 122,550.79
Step by Step Solution
- Step 1: Write the proportion equation
134,528.20 : 201,529.86 = 81,806.92 : x - Step 2: Convert to fraction form
134,528.20/201,529.86 = 81,806.92/x - Step 3: Cross multiply
134,528.20x = 201,529.86 × 81,806.92 - Step 4: Simplify right side
134,528.20x = 16,486,537,134.63 - Step 5: Solve for x
x = 16,486,537,134.63/134,528.20 - Step 6: Final answer
x = 122,550.79
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.