Finding the Fourth Proportional to 113,857.72, 170,787.08 and 47,297.79
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Solution
The fourth proportional to 113,857.72, 170,787.08 and 47,297.79 is: 70,946.88
Step by Step Solution
- Step 1: Write the proportion equation
113,857.72 : 170,787.08 = 47,297.79 : x - Step 2: Convert to fraction form
113,857.72/170,787.08 = 47,297.79/x - Step 3: Cross multiply
113,857.72x = 170,787.08 × 47,297.79 - Step 4: Simplify right side
113,857.72x = 8,077,850,354.13 - Step 5: Solve for x
x = 8,077,850,354.13/113,857.72 - Step 6: Final answer
x = 70,946.88
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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.