Finding the Fourth Proportional to 139,839.08, 209,788.99 and 51,092.44
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Solution
The fourth proportional to 139,839.08, 209,788.99 and 51,092.44 is: 76,649.75
Step by Step Solution
- Step 1: Write the proportion equation
139,839.08 : 209,788.99 = 51,092.44 : x - Step 2: Convert to fraction form
139,839.08/209,788.99 = 51,092.44/x - Step 3: Cross multiply
139,839.08x = 209,788.99 × 51,092.44 - Step 4: Simplify right side
139,839.08x = 10,718,630,732.03 - Step 5: Solve for x
x = 10,718,630,732.03/139,839.08 - Step 6: Final answer
x = 76,649.75
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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.