Finding the Fourth Proportional to 120,837.67, 181,274.96 and 61,641.05
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Solution
The fourth proportional to 120,837.67, 181,274.96 and 61,641.05 is: 92,470.99
Step by Step Solution
- Step 1: Write the proportion equation
120,837.67 : 181,274.96 = 61,641.05 : x - Step 2: Convert to fraction form
120,837.67/181,274.96 = 61,641.05/x - Step 3: Cross multiply
120,837.67x = 181,274.96 × 61,641.05 - Step 4: Simplify right side
120,837.67x = 11,173,979,140.51 - Step 5: Solve for x
x = 11,173,979,140.51/120,837.67 - Step 6: Final answer
x = 92,470.99
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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.