Finding the Fourth Proportional to 125,432.24, 173,129.67 and 77,658.44
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Solution
The fourth proportional to 125,432.24, 173,129.67 and 77,658.44 is: 107,189.19
Step by Step Solution
- Step 1: Write the proportion equation
125,432.24 : 173,129.67 = 77,658.44 : x - Step 2: Convert to fraction form
125,432.24/173,129.67 = 77,658.44/x - Step 3: Cross multiply
125,432.24x = 173,129.67 × 77,658.44 - Step 4: Simplify right side
125,432.24x = 13,444,979,224.27 - Step 5: Solve for x
x = 13,444,979,224.27/125,432.24 - Step 6: Final answer
x = 107,189.19
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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.