Finding the Fourth Proportional to 137,400.71, 206,152.97 and 53,165.94
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Solution
The fourth proportional to 137,400.71, 206,152.97 and 53,165.94 is: 79,768.99
Step by Step Solution
- Step 1: Write the proportion equation
137,400.71 : 206,152.97 = 53,165.94 : x - Step 2: Convert to fraction form
137,400.71/206,152.97 = 53,165.94/x - Step 3: Cross multiply
137,400.71x = 206,152.97 × 53,165.94 - Step 4: Simplify right side
137,400.71x = 10,960,315,394.94 - Step 5: Solve for x
x = 10,960,315,394.94/137,400.71 - Step 6: Final answer
x = 79,768.99
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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.