Finding the Fourth Proportional to 128,655.50, 192,935.82 and 44,394.14
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Solution
The fourth proportional to 128,655.50, 192,935.82 and 44,394.14 is: 66,574.84
Step by Step Solution
- Step 1: Write the proportion equation
128,655.50 : 192,935.82 = 44,394.14 : x - Step 2: Convert to fraction form
128,655.50/192,935.82 = 44,394.14/x - Step 3: Cross multiply
128,655.50x = 192,935.82 × 44,394.14 - Step 4: Simplify right side
128,655.50x = 8,565,219,804.09 - Step 5: Solve for x
x = 8,565,219,804.09/128,655.50 - Step 6: Final answer
x = 66,574.84
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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.