Finding the Fourth Proportional to 126,017.91, 173,900.66 and 72,302.09
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Solution
The fourth proportional to 126,017.91, 173,900.66 and 72,302.09 is: 99,774.55
Step by Step Solution
- Step 1: Write the proportion equation
126,017.91 : 173,900.66 = 72,302.09 : x - Step 2: Convert to fraction form
126,017.91/173,900.66 = 72,302.09/x - Step 3: Cross multiply
126,017.91x = 173,900.66 × 72,302.09 - Step 4: Simplify right side
126,017.91x = 12,573,379,939.37 - Step 5: Solve for x
x = 12,573,379,939.37/126,017.91 - Step 6: Final answer
x = 99,774.55
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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.