Finding the Fourth Proportional to 124,787.24, 172,206.84 and 68,198.64
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Solution
The fourth proportional to 124,787.24, 172,206.84 and 68,198.64 is: 94,114.37
Step by Step Solution
- Step 1: Write the proportion equation
124,787.24 : 172,206.84 = 68,198.64 : x - Step 2: Convert to fraction form
124,787.24/172,206.84 = 68,198.64/x - Step 3: Cross multiply
124,787.24x = 172,206.84 × 68,198.64 - Step 4: Simplify right side
124,787.24x = 11,744,272,286.70 - Step 5: Solve for x
x = 11,744,272,286.70/124,787.24 - Step 6: Final answer
x = 94,114.37
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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.