Finding the Fourth Proportional to 131,352.38, 181,266.48 and 74,763.75
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Solution
The fourth proportional to 131,352.38, 181,266.48 and 74,763.75 is: 103,174.09
Step by Step Solution
- Step 1: Write the proportion equation
131,352.38 : 181,266.48 = 74,763.75 : x - Step 2: Convert to fraction form
131,352.38/181,266.48 = 74,763.75/x - Step 3: Cross multiply
131,352.38x = 181,266.48 × 74,763.75 - Step 4: Simplify right side
131,352.38x = 13,552,161,794.10 - Step 5: Solve for x
x = 13,552,161,794.10/131,352.38 - Step 6: Final answer
x = 103,174.09
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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.