Finding the Fourth Proportional to 128,346.93, 192,465.11 and 44,115.64
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Solution
The fourth proportional to 128,346.93, 192,465.11 and 44,115.64 is: 66,154.45
Step by Step Solution
- Step 1: Write the proportion equation
128,346.93 : 192,465.11 = 44,115.64 : x - Step 2: Convert to fraction form
128,346.93/192,465.11 = 44,115.64/x - Step 3: Cross multiply
128,346.93x = 192,465.11 × 44,115.64 - Step 4: Simplify right side
128,346.93x = 8,490,721,134.45 - Step 5: Solve for x
x = 8,490,721,134.45/128,346.93 - Step 6: Final answer
x = 66,154.45
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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.