Finding the Fourth Proportional to 128,497.58, 192,635.52 and 61,846.02
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Solution
The fourth proportional to 128,497.58, 192,635.52 and 61,846.02 is: 92,715.68
Step by Step Solution
- Step 1: Write the proportion equation
128,497.58 : 192,635.52 = 61,846.02 : x - Step 2: Convert to fraction form
128,497.58/192,635.52 = 61,846.02/x - Step 3: Cross multiply
128,497.58x = 192,635.52 × 61,846.02 - Step 4: Simplify right side
128,497.58x = 11,913,740,222.63 - Step 5: Solve for x
x = 11,913,740,222.63/128,497.58 - Step 6: Final answer
x = 92,715.68
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1.5x scale
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.