Finding the Fourth Proportional to 98,771.24, 148,020.24 and 85,590.92
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Solution
The fourth proportional to 98,771.24, 148,020.24 and 85,590.92 is: 128,267.99
Step by Step Solution
- Step 1: Write the proportion equation
98,771.24 : 148,020.24 = 85,590.92 : x - Step 2: Convert to fraction form
98,771.24/148,020.24 = 85,590.92/x - Step 3: Cross multiply
98,771.24x = 148,020.24 × 85,590.92 - Step 4: Simplify right side
98,771.24x = 12,669,188,520.22 - Step 5: Solve for x
x = 12,669,188,520.22/98,771.24 - Step 6: Final answer
x = 128,267.99
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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.