Finding the Fourth Proportional to 141,819.99, 195,707.97 and 77,290.88
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Solution
The fourth proportional to 141,819.99, 195,707.97 and 77,290.88 is: 106,659.45
Step by Step Solution
- Step 1: Write the proportion equation
141,819.99 : 195,707.97 = 77,290.88 : x - Step 2: Convert to fraction form
141,819.99/195,707.97 = 77,290.88/x - Step 3: Cross multiply
141,819.99x = 195,707.97 × 77,290.88 - Step 4: Simplify right side
141,819.99x = 15,126,441,906.81 - Step 5: Solve for x
x = 15,126,441,906.81/141,819.99 - Step 6: Final answer
x = 106,659.45
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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.