Finding the Fourth Proportional to 146,699.58, 202,445.64 and 79,631.58
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Solution
The fourth proportional to 146,699.58, 202,445.64 and 79,631.58 is: 109,891.70
Step by Step Solution
- Step 1: Write the proportion equation
146,699.58 : 202,445.64 = 79,631.58 : x - Step 2: Convert to fraction form
146,699.58/202,445.64 = 79,631.58/x - Step 3: Cross multiply
146,699.58x = 202,445.64 × 79,631.58 - Step 4: Simplify right side
146,699.58x = 16,121,066,177.31 - Step 5: Solve for x
x = 16,121,066,177.31/146,699.58 - Step 6: Final answer
x = 109,891.70
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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.