Finding the Fourth Proportional to 128,847.23, 193,276.92 and 106,316.11
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Solution
The fourth proportional to 128,847.23, 193,276.92 and 106,316.11 is: 159,479.17
Step by Step Solution
- Step 1: Write the proportion equation
128,847.23 : 193,276.92 = 106,316.11 : x - Step 2: Convert to fraction form
128,847.23/193,276.92 = 106,316.11/x - Step 3: Cross multiply
128,847.23x = 193,276.92 × 106,316.11 - Step 4: Simplify right side
128,847.23x = 20,548,449,755.60 - Step 5: Solve for x
x = 20,548,449,755.60/128,847.23 - Step 6: Final answer
x = 159,479.17
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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.