Finding the Fourth Proportional to 125,733.84, 173,463.20 and 71,989.92
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Solution
The fourth proportional to 125,733.84, 173,463.20 and 71,989.92 is: 99,317.75
Step by Step Solution
- Step 1: Write the proportion equation
125,733.84 : 173,463.20 = 71,989.92 : x - Step 2: Convert to fraction form
125,733.84/173,463.20 = 71,989.92/x - Step 3: Cross multiply
125,733.84x = 173,463.20 × 71,989.92 - Step 4: Simplify right side
125,733.84x = 12,487,601,890.94 - Step 5: Solve for x
x = 12,487,601,890.94/125,733.84 - Step 6: Final answer
x = 99,317.75
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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.