Finding the Fourth Proportional to 159,445.38, 220,036.41 and 87,823.92
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Solution
The fourth proportional to 159,445.38, 220,036.41 and 87,823.92 is: 121,197.99
Step by Step Solution
- Step 1: Write the proportion equation
159,445.38 : 220,036.41 = 87,823.92 : x - Step 2: Convert to fraction form
159,445.38/220,036.41 = 87,823.92/x - Step 3: Cross multiply
159,445.38x = 220,036.41 × 87,823.92 - Step 4: Simplify right side
159,445.38x = 19,324,460,068.93 - Step 5: Solve for x
x = 19,324,460,068.93/159,445.38 - Step 6: Final answer
x = 121,197.99
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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.