Finding the Fourth Proportional to 156,682.68, 216,218.75 and 85,062.08
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Solution
The fourth proportional to 156,682.68, 216,218.75 and 85,062.08 is: 117,383.84
Step by Step Solution
- Step 1: Write the proportion equation
156,682.68 : 216,218.75 = 85,062.08 : x - Step 2: Convert to fraction form
156,682.68/216,218.75 = 85,062.08/x - Step 3: Cross multiply
156,682.68x = 216,218.75 × 85,062.08 - Step 4: Simplify right side
156,682.68x = 18,392,015,103.60 - Step 5: Solve for x
x = 18,392,015,103.60/156,682.68 - Step 6: Final answer
x = 117,383.84
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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.