Finding the Fourth Proportional to 137,958.24, 206,806.12 and 87,897.80
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Solution
The fourth proportional to 137,958.24, 206,806.12 and 87,897.80 is: 131,763.08
Step by Step Solution
- Step 1: Write the proportion equation
137,958.24 : 206,806.12 = 87,897.80 : x - Step 2: Convert to fraction form
137,958.24/206,806.12 = 87,897.80/x - Step 3: Cross multiply
137,958.24x = 206,806.12 × 87,897.80 - Step 4: Simplify right side
137,958.24x = 18,177,802,974.54 - Step 5: Solve for x
x = 18,177,802,974.54/137,958.24 - Step 6: Final answer
x = 131,763.08
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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.