Finding the Fourth Proportional to 135,474.09, 186,955.74 and 75,045.66
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Solution
The fourth proportional to 135,474.09, 186,955.74 and 75,045.66 is: 103,563.84
Step by Step Solution
- Step 1: Write the proportion equation
135,474.09 : 186,955.74 = 75,045.66 : x - Step 2: Convert to fraction form
135,474.09/186,955.74 = 75,045.66/x - Step 3: Cross multiply
135,474.09x = 186,955.74 × 75,045.66 - Step 4: Simplify right side
135,474.09x = 14,030,216,899.09 - Step 5: Solve for x
x = 14,030,216,899.09/135,474.09 - Step 6: Final answer
x = 103,563.84
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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.