Finding the Fourth Proportional to 115,122.15, 158,872.97 and 66,725.66
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Solution
The fourth proportional to 115,122.15, 158,872.97 and 66,725.66 is: 92,083.96
Step by Step Solution
- Step 1: Write the proportion equation
115,122.15 : 158,872.97 = 66,725.66 : x - Step 2: Convert to fraction form
115,122.15/158,872.97 = 66,725.66/x - Step 3: Cross multiply
115,122.15x = 158,872.97 × 66,725.66 - Step 4: Simplify right side
115,122.15x = 10,600,903,779.41 - Step 5: Solve for x
x = 10,600,903,779.41/115,122.15 - Step 6: Final answer
x = 92,083.96
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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.