Finding the Fourth Proportional to 128,637.31, 192,953.18 and 44,394.64
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Solution
The fourth proportional to 128,637.31, 192,953.18 and 44,394.64 is: 66,591.00
Step by Step Solution
- Step 1: Write the proportion equation
128,637.31 : 192,953.18 = 44,394.64 : x - Step 2: Convert to fraction form
128,637.31/192,953.18 = 44,394.64/x - Step 3: Cross multiply
128,637.31x = 192,953.18 × 44,394.64 - Step 4: Simplify right side
128,637.31x = 8,566,086,740.98 - Step 5: Solve for x
x = 8,566,086,740.98/128,637.31 - Step 6: Final answer
x = 66,591.00
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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.