Finding the Fourth Proportional to 128,471.59, 192,659.50 and 44,208.19
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Solution
The fourth proportional to 128,471.59, 192,659.50 and 44,208.19 is: 66,295.81
Step by Step Solution
- Step 1: Write the proportion equation
128,471.59 : 192,659.50 = 44,208.19 : x - Step 2: Convert to fraction form
128,471.59/192,659.50 = 44,208.19/x - Step 3: Cross multiply
128,471.59x = 192,659.50 × 44,208.19 - Step 4: Simplify right side
128,471.59x = 8,517,127,781.31 - Step 5: Solve for x
x = 8,517,127,781.31/128,471.59 - Step 6: Final answer
x = 66,295.81
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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.