Finding the Fourth Proportional to 149,759.27, 206,668.63 and 81,777.99
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Solution
The fourth proportional to 149,759.27, 206,668.63 and 81,777.99 is: 112,854.08
Step by Step Solution
- Step 1: Write the proportion equation
149,759.27 : 206,668.63 = 81,777.99 : x - Step 2: Convert to fraction form
149,759.27/206,668.63 = 81,777.99/x - Step 3: Cross multiply
149,759.27x = 206,668.63 × 81,777.99 - Step 4: Simplify right side
149,759.27x = 16,900,945,157.45 - Step 5: Solve for x
x = 16,900,945,157.45/149,759.27 - Step 6: Final answer
x = 112,854.08
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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.