Finding the Fourth Proportional to 134,672.96, 201,786.08 and 81,922.88
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Solution
The fourth proportional to 134,672.96, 201,786.08 and 81,922.88 is: 122,748.45
Step by Step Solution
- Step 1: Write the proportion equation
134,672.96 : 201,786.08 = 81,922.88 : x - Step 2: Convert to fraction form
134,672.96/201,786.08 = 81,922.88/x - Step 3: Cross multiply
134,672.96x = 201,786.08 × 81,922.88 - Step 4: Simplify right side
134,672.96x = 16,530,896,817.51 - Step 5: Solve for x
x = 16,530,896,817.51/134,672.96 - Step 6: Final answer
x = 122,748.45
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1.5x scale
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.