Finding the Fourth Proportional to 156,687.95, 216,229.37 and 85,067.99
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Solution
The fourth proportional to 156,687.95, 216,229.37 and 85,067.99 is: 117,393.82
Step by Step Solution
- Step 1: Write the proportion equation
156,687.95 : 216,229.37 = 85,067.99 : x - Step 2: Convert to fraction form
156,687.95/216,229.37 = 85,067.99/x - Step 3: Cross multiply
156,687.95x = 216,229.37 × 85,067.99 - Step 4: Simplify right side
156,687.95x = 18,394,196,378.38 - Step 5: Solve for x
x = 18,394,196,378.38/156,687.95 - Step 6: Final answer
x = 117,393.82
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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.