Finding the Fourth Proportional to 125,782.52, 173,580.36 and 68,421.84
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Solution
The fourth proportional to 125,782.52, 173,580.36 and 68,421.84 is: 94,422.40
Step by Step Solution
- Step 1: Write the proportion equation
125,782.52 : 173,580.36 = 68,421.84 : x - Step 2: Convert to fraction form
125,782.52/173,580.36 = 68,421.84/x - Step 3: Cross multiply
125,782.52x = 173,580.36 × 68,421.84 - Step 4: Simplify right side
125,782.52x = 11,876,687,619.06 - Step 5: Solve for x
x = 11,876,687,619.06/125,782.52 - Step 6: Final answer
x = 94,422.40
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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.