Finding the Fourth Proportional to 135,116.02, 186,471.62 and 78,523.75
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Solution
The fourth proportional to 135,116.02, 186,471.62 and 78,523.75 is: 108,369.47
Step by Step Solution
- Step 1: Write the proportion equation
135,116.02 : 186,471.62 = 78,523.75 : x - Step 2: Convert to fraction form
135,116.02/186,471.62 = 78,523.75/x - Step 3: Cross multiply
135,116.02x = 186,471.62 × 78,523.75 - Step 4: Simplify right side
135,116.02x = 14,642,450,870.98 - Step 5: Solve for x
x = 14,642,450,870.98/135,116.02 - Step 6: Final answer
x = 108,369.47
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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.