Finding the Fourth Proportional to 105,040.08, 144,958.68 and 57,295.44
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Solution
The fourth proportional to 105,040.08, 144,958.68 and 57,295.44 is: 79,069.55
Step by Step Solution
- Step 1: Write the proportion equation
105,040.08 : 144,958.68 = 57,295.44 : x - Step 2: Convert to fraction form
105,040.08/144,958.68 = 57,295.44/x - Step 3: Cross multiply
105,040.08x = 144,958.68 × 57,295.44 - Step 4: Simplify right side
105,040.08x = 8,305,471,352.42 - Step 5: Solve for x
x = 8,305,471,352.42/105,040.08 - Step 6: Final answer
x = 79,069.55
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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.