Finding the Fourth Proportional to 107,928.75, 148,941.68 and 63,216.75
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Solution
The fourth proportional to 107,928.75, 148,941.68 and 63,216.75 is: 87,239.12
Step by Step Solution
- Step 1: Write the proportion equation
107,928.75 : 148,941.68 = 63,216.75 : x - Step 2: Convert to fraction form
107,928.75/148,941.68 = 63,216.75/x - Step 3: Cross multiply
107,928.75x = 148,941.68 × 63,216.75 - Step 4: Simplify right side
107,928.75x = 9,415,608,633.06 - Step 5: Solve for x
x = 9,415,608,633.06/107,928.75 - Step 6: Final answer
x = 87,239.12
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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.