Finding the Fourth Proportional to 135,986.40, 203,898.60 and 83,433.60
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Solution
The fourth proportional to 135,986.40, 203,898.60 and 83,433.60 is: 125,100.70
Step by Step Solution
- Step 1: Write the proportion equation
135,986.40 : 203,898.60 = 83,433.60 : x - Step 2: Convert to fraction form
135,986.40/203,898.60 = 83,433.60/x - Step 3: Cross multiply
135,986.40x = 203,898.60 × 83,433.60 - Step 4: Simplify right side
135,986.40x = 17,011,994,232.96 - Step 5: Solve for x
x = 17,011,994,232.96/135,986.40 - Step 6: Final answer
x = 125,100.70
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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.