Finding the Fourth Proportional to 126,819.28, 190,298.93 and 70,690.99
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Solution
The fourth proportional to 126,819.28, 190,298.93 and 70,690.99 is: 106,075.51
Step by Step Solution
- Step 1: Write the proportion equation
126,819.28 : 190,298.93 = 70,690.99 : x - Step 2: Convert to fraction form
126,819.28/190,298.93 = 70,690.99/x - Step 3: Cross multiply
126,819.28x = 190,298.93 × 70,690.99 - Step 4: Simplify right side
126,819.28x = 13,452,419,757.64 - Step 5: Solve for x
x = 13,452,419,757.64/126,819.28 - Step 6: Final answer
x = 106,075.51
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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.