Finding the Fourth Proportional to 135,742.20, 203,564.52 and 46,971.60
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Solution
The fourth proportional to 135,742.20, 203,564.52 and 46,971.60 is: 70,440.52
Step by Step Solution
- Step 1: Write the proportion equation
135,742.20 : 203,564.52 = 46,971.60 : x - Step 2: Convert to fraction form
135,742.20/203,564.52 = 46,971.60/x - Step 3: Cross multiply
135,742.20x = 203,564.52 × 46,971.60 - Step 4: Simplify right side
135,742.20x = 9,561,751,207.63 - Step 5: Solve for x
x = 9,561,751,207.63/135,742.20 - Step 6: Final answer
x = 70,440.52
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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.