Finding the Fourth Proportional to 115,899.80, 173,849.70 and 104,235.80
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Solution
The fourth proportional to 115,899.80, 173,849.70 and 104,235.80 is: 156,353.70
Step by Step Solution
- Step 1: Write the proportion equation
115,899.80 : 173,849.70 = 104,235.80 : x - Step 2: Convert to fraction form
115,899.80/173,849.70 = 104,235.80/x - Step 3: Cross multiply
115,899.80x = 173,849.70 × 104,235.80 - Step 4: Simplify right side
115,899.80x = 18,121,362,559.26 - Step 5: Solve for x
x = 18,121,362,559.26/115,899.80 - Step 6: Final answer
x = 156,353.70
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1.5x scale
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.