Finding the Fourth Proportional to 135,466.43, 186,943.69 and 75,040.99
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Solution
The fourth proportional to 135,466.43, 186,943.69 and 75,040.99 is: 103,556.57
Step by Step Solution
- Step 1: Write the proportion equation
135,466.43 : 186,943.69 = 75,040.99 : x - Step 2: Convert to fraction form
135,466.43/186,943.69 = 75,040.99/x - Step 3: Cross multiply
135,466.43x = 186,943.69 × 75,040.99 - Step 4: Simplify right side
135,466.43x = 14,028,439,759.46 - Step 5: Solve for x
x = 14,028,439,759.46/135,466.43 - Step 6: Final answer
x = 103,556.57
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.