Finding the Fourth Proportional to 109,539.93, 151,163.94 and 61,808.81
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Solution
The fourth proportional to 109,539.93, 151,163.94 and 61,808.81 is: 85,295.50
Step by Step Solution
- Step 1: Write the proportion equation
109,539.93 : 151,163.94 = 61,808.81 : x - Step 2: Convert to fraction form
109,539.93/151,163.94 = 61,808.81/x - Step 3: Cross multiply
109,539.93x = 151,163.94 × 61,808.81 - Step 4: Simplify right side
109,539.93x = 9,343,263,246.31 - Step 5: Solve for x
x = 9,343,263,246.31/109,539.93 - Step 6: Final answer
x = 85,295.50
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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.