Finding the Fourth Proportional to 129,390.08, 194,083.26 and 40,648.91
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Solution
The fourth proportional to 129,390.08, 194,083.26 and 40,648.91 is: 60,972.78
Step by Step Solution
- Step 1: Write the proportion equation
129,390.08 : 194,083.26 = 40,648.91 : x - Step 2: Convert to fraction form
129,390.08/194,083.26 = 40,648.91/x - Step 3: Cross multiply
129,390.08x = 194,083.26 × 40,648.91 - Step 4: Simplify right side
129,390.08x = 7,889,272,968.25 - Step 5: Solve for x
x = 7,889,272,968.25/129,390.08 - Step 6: Final answer
x = 60,972.78
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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.