Finding the Fourth Proportional to 126,763.13, 174,921.12 and 75,765.63
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Solution
The fourth proportional to 126,763.13, 174,921.12 and 75,765.63 is: 104,549.40
Step by Step Solution
- Step 1: Write the proportion equation
126,763.13 : 174,921.12 = 75,765.63 : x - Step 2: Convert to fraction form
126,763.13/174,921.12 = 75,765.63/x - Step 3: Cross multiply
126,763.13x = 174,921.12 × 75,765.63 - Step 4: Simplify right side
126,763.13x = 13,253,008,529.13 - Step 5: Solve for x
x = 13,253,008,529.13/126,763.13 - Step 6: Final answer
x = 104,549.40
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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.