Finding the Fourth Proportional to 168,849.36, 232,910.52 and 111,489.18
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Solution
The fourth proportional to 168,849.36, 232,910.52 and 111,489.18 is: 153,787.99
Step by Step Solution
- Step 1: Write the proportion equation
168,849.36 : 232,910.52 = 111,489.18 : x - Step 2: Convert to fraction form
168,849.36/232,910.52 = 111,489.18/x - Step 3: Cross multiply
168,849.36x = 232,910.52 × 111,489.18 - Step 4: Simplify right side
168,849.36x = 25,967,002,888.17 - Step 5: Solve for x
x = 25,967,002,888.17/168,849.36 - Step 6: Final answer
x = 153,787.99
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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.