Finding the Fourth Proportional to 128,812.41, 193,194.01 and 40,066.99
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Solution
The fourth proportional to 128,812.41, 193,194.01 and 40,066.99 is: 60,092.83
Step by Step Solution
- Step 1: Write the proportion equation
128,812.41 : 193,194.01 = 40,066.99 : x - Step 2: Convert to fraction form
128,812.41/193,194.01 = 40,066.99/x - Step 3: Cross multiply
128,812.41x = 193,194.01 × 40,066.99 - Step 4: Simplify right side
128,812.41x = 7,740,702,033.83 - Step 5: Solve for x
x = 7,740,702,033.83/128,812.41 - Step 6: Final answer
x = 60,092.83
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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.