Finding the Fourth Proportional to 126,188.12, 174,133.44 and 75,199.68
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Solution
The fourth proportional to 126,188.12, 174,133.44 and 75,199.68 is: 103,771.89
Step by Step Solution
- Step 1: Write the proportion equation
126,188.12 : 174,133.44 = 75,199.68 : x - Step 2: Convert to fraction form
126,188.12/174,133.44 = 75,199.68/x - Step 3: Cross multiply
126,188.12x = 174,133.44 × 75,199.68 - Step 4: Simplify right side
126,188.12x = 13,094,778,965.30 - Step 5: Solve for x
x = 13,094,778,965.30/126,188.12 - Step 6: Final answer
x = 103,771.89
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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.