Finding the Fourth Proportional to 159,272.91, 219,797.64 and 87,651.09
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Solution
The fourth proportional to 159,272.91, 219,797.64 and 87,651.09 is: 120,959.07
Step by Step Solution
- Step 1: Write the proportion equation
159,272.91 : 219,797.64 = 87,651.09 : x - Step 2: Convert to fraction form
159,272.91/219,797.64 = 87,651.09/x - Step 3: Cross multiply
159,272.91x = 219,797.64 × 87,651.09 - Step 4: Simplify right side
159,272.91x = 19,265,502,725.43 - Step 5: Solve for x
x = 19,265,502,725.43/159,272.91 - Step 6: Final answer
x = 120,959.07
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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.