Finding the Fourth Proportional to 128,497.64, 192,664.22 and 61,804.96
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Solution
The fourth proportional to 128,497.64, 192,664.22 and 61,804.96 is: 92,667.88
Step by Step Solution
- Step 1: Write the proportion equation
128,497.64 : 192,664.22 = 61,804.96 : x - Step 2: Convert to fraction form
128,497.64/192,664.22 = 61,804.96/x - Step 3: Cross multiply
128,497.64x = 192,664.22 × 61,804.96 - Step 4: Simplify right side
128,497.64x = 11,907,604,410.53 - Step 5: Solve for x
x = 11,907,604,410.53/128,497.64 - Step 6: Final answer
x = 92,667.88
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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.