Finding the Fourth Proportional to 147,216.20, 203,161.08 and 83,558.09
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Solution
The fourth proportional to 147,216.20, 203,161.08 and 83,558.09 is: 115,311.71
Step by Step Solution
- Step 1: Write the proportion equation
147,216.20 : 203,161.08 = 83,558.09 : x - Step 2: Convert to fraction form
147,216.20/203,161.08 = 83,558.09/x - Step 3: Cross multiply
147,216.20x = 203,161.08 × 83,558.09 - Step 4: Simplify right side
147,216.20x = 16,975,750,791.33 - Step 5: Solve for x
x = 16,975,750,791.33/147,216.20 - Step 6: Final answer
x = 115,311.71
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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.