Finding the Fourth Proportional to 125,715.60, 173,444.36 and 77,951.76
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Solution
The fourth proportional to 125,715.60, 173,444.36 and 77,951.76 is: 107,546.66
Step by Step Solution
- Step 1: Write the proportion equation
125,715.60 : 173,444.36 = 77,951.76 : x - Step 2: Convert to fraction form
125,715.60/173,444.36 = 77,951.76/x - Step 3: Cross multiply
125,715.60x = 173,444.36 × 77,951.76 - Step 4: Simplify right side
125,715.60x = 13,520,293,124.07 - Step 5: Solve for x
x = 13,520,293,124.07/125,715.60 - Step 6: Final answer
x = 107,546.66
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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.