Finding the Fourth Proportional to 135,479.20, 203,349.96 and 65,407.68
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Solution
The fourth proportional to 135,479.20, 203,349.96 and 65,407.68 is: 98,174.84
Step by Step Solution
- Step 1: Write the proportion equation
135,479.20 : 203,349.96 = 65,407.68 : x - Step 2: Convert to fraction form
135,479.20/203,349.96 = 65,407.68/x - Step 3: Cross multiply
135,479.20x = 203,349.96 × 65,407.68 - Step 4: Simplify right side
135,479.20x = 13,300,649,111.69 - Step 5: Solve for x
x = 13,300,649,111.69/135,479.20 - Step 6: Final answer
x = 98,174.84
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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.