Finding the Fourth Proportional to 135,418.24, 186,846.24 and 87,045.44
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Solution
The fourth proportional to 135,418.24, 186,846.24 and 87,045.44 is: 120,102.82
Step by Step Solution
- Step 1: Write the proportion equation
135,418.24 : 186,846.24 = 87,045.44 : x - Step 2: Convert to fraction form
135,418.24/186,846.24 = 87,045.44/x - Step 3: Cross multiply
135,418.24x = 186,846.24 × 87,045.44 - Step 4: Simplify right side
135,418.24x = 16,264,113,173.15 - Step 5: Solve for x
x = 16,264,113,173.15/135,418.24 - Step 6: Final answer
x = 120,102.82
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.