Finding the Fourth Proportional to 148,717.68, 205,223.36 and 80,733.12
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Solution
The fourth proportional to 148,717.68, 205,223.36 and 80,733.12 is: 111,407.88
Step by Step Solution
- Step 1: Write the proportion equation
148,717.68 : 205,223.36 = 80,733.12 : x - Step 2: Convert to fraction form
148,717.68/205,223.36 = 80,733.12/x - Step 3: Cross multiply
148,717.68x = 205,223.36 × 80,733.12 - Step 4: Simplify right side
148,717.68x = 16,568,322,149.68 - Step 5: Solve for x
x = 16,568,322,149.68/148,717.68 - Step 6: Final answer
x = 111,407.88
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1.5x scale
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.