Finding the Fourth Proportional to 120,805.56, 181,071.61 and 61,515.99
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Solution
The fourth proportional to 120,805.56, 181,071.61 and 61,515.99 is: 92,204.36
Step by Step Solution
- Step 1: Write the proportion equation
120,805.56 : 181,071.61 = 61,515.99 : x - Step 2: Convert to fraction form
120,805.56/181,071.61 = 61,515.99/x - Step 3: Cross multiply
120,805.56x = 181,071.61 × 61,515.99 - Step 4: Simplify right side
120,805.56x = 11,138,799,350.04 - Step 5: Solve for x
x = 11,138,799,350.04/120,805.56 - Step 6: Final answer
x = 92,204.36
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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.