Finding the Fourth Proportional to 75,596.16, 113,898.68 and 68,489.28
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Solution
The fourth proportional to 75,596.16, 113,898.68 and 68,489.28 is: 103,190.94
Step by Step Solution
- Step 1: Write the proportion equation
75,596.16 : 113,898.68 = 68,489.28 : x - Step 2: Convert to fraction form
75,596.16/113,898.68 = 68,489.28/x - Step 3: Cross multiply
75,596.16x = 113,898.68 × 68,489.28 - Step 4: Simplify right side
75,596.16x = 7,800,838,586.15 - Step 5: Solve for x
x = 7,800,838,586.15/75,596.16 - Step 6: Final answer
x = 103,190.94
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.