Finding the Fourth Proportional to 102,418.73, 153,628.09 and 67,350.18
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Solution
The fourth proportional to 102,418.73, 153,628.09 and 67,350.18 is: 101,025.28
Step by Step Solution
- Step 1: Write the proportion equation
102,418.73 : 153,628.09 = 67,350.18 : x - Step 2: Convert to fraction form
102,418.73/153,628.09 = 67,350.18/x - Step 3: Cross multiply
102,418.73x = 153,628.09 × 67,350.18 - Step 4: Simplify right side
102,418.73x = 10,346,880,301.13 - Step 5: Solve for x
x = 10,346,880,301.13/102,418.73 - Step 6: Final answer
x = 101,025.28
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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.