Finding the Fourth Proportional to 106,621.44, 147,137.76 and 58,876.80
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Solution
The fourth proportional to 106,621.44, 147,137.76 and 58,876.80 is: 81,250.08
Step by Step Solution
- Step 1: Write the proportion equation
106,621.44 : 147,137.76 = 58,876.80 : x - Step 2: Convert to fraction form
106,621.44/147,137.76 = 58,876.80/x - Step 3: Cross multiply
106,621.44x = 147,137.76 × 58,876.80 - Step 4: Simplify right side
106,621.44x = 8,663,000,467.97 - Step 5: Solve for x
x = 8,663,000,467.97/106,621.44 - Step 6: Final answer
x = 81,250.08
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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.