Finding the Fourth Proportional to 128,677.24, 192,978.88 and 44,415.52
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Solution
The fourth proportional to 128,677.24, 192,978.88 and 44,415.52 is: 66,610.52
Step by Step Solution
- Step 1: Write the proportion equation
128,677.24 : 192,978.88 = 44,415.52 : x - Step 2: Convert to fraction form
128,677.24/192,978.88 = 44,415.52/x - Step 3: Cross multiply
128,677.24x = 192,978.88 × 44,415.52 - Step 4: Simplify right side
128,677.24x = 8,571,257,304.22 - Step 5: Solve for x
x = 8,571,257,304.22/128,677.24 - Step 6: Final answer
x = 66,610.52
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.