Finding the Fourth Proportional to 128,272.68, 192,437.42 and 44,030.96
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Solution
The fourth proportional to 128,272.68, 192,437.42 and 44,030.96 is: 66,056.18
Step by Step Solution
- Step 1: Write the proportion equation
128,272.68 : 192,437.42 = 44,030.96 : x - Step 2: Convert to fraction form
128,272.68/192,437.42 = 44,030.96/x - Step 3: Cross multiply
128,272.68x = 192,437.42 × 44,030.96 - Step 4: Simplify right side
128,272.68x = 8,473,203,160.18 - Step 5: Solve for x
x = 8,473,203,160.18/128,272.68 - Step 6: Final answer
x = 66,056.18
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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.