Finding the Fourth Proportional to 137,555.70, 206,350.47 and 53,317.26
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Solution
The fourth proportional to 137,555.70, 206,350.47 and 53,317.26 is: 79,982.45
Step by Step Solution
- Step 1: Write the proportion equation
137,555.70 : 206,350.47 = 53,317.26 : x - Step 2: Convert to fraction form
137,555.70/206,350.47 = 53,317.26/x - Step 3: Cross multiply
137,555.70x = 206,350.47 × 53,317.26 - Step 4: Simplify right side
137,555.70x = 11,002,041,660.11 - Step 5: Solve for x
x = 11,002,041,660.11/137,555.70 - Step 6: Final answer
x = 79,982.45
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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.