Finding the Fourth Proportional to 107,798.40, 161,782.36 and 74,751.02
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Solution
The fourth proportional to 107,798.40, 161,782.36 and 74,751.02 is: 112,185.31
Step by Step Solution
- Step 1: Write the proportion equation
107,798.40 : 161,782.36 = 74,751.02 : x - Step 2: Convert to fraction form
107,798.40/161,782.36 = 74,751.02/x - Step 3: Cross multiply
107,798.40x = 161,782.36 × 74,751.02 - Step 4: Simplify right side
107,798.40x = 12,093,396,428.01 - Step 5: Solve for x
x = 12,093,396,428.01/107,798.40 - Step 6: Final answer
x = 112,185.31
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.