Finding the Fourth Proportional to 128,679.96, 192,972.50 and 44,418.68
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Solution
The fourth proportional to 128,679.96, 192,972.50 and 44,418.68 is: 66,611.64
Step by Step Solution
- Step 1: Write the proportion equation
128,679.96 : 192,972.50 = 44,418.68 : x - Step 2: Convert to fraction form
128,679.96/192,972.50 = 44,418.68/x - Step 3: Cross multiply
128,679.96x = 192,972.50 × 44,418.68 - Step 4: Simplify right side
128,679.96x = 8,571,583,726.30 - Step 5: Solve for x
x = 8,571,583,726.30/128,679.96 - Step 6: Final answer
x = 66,611.64
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.