Finding the Fourth Proportional to 159,079.97, 219,531.11 and 87,464.63
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Solution
The fourth proportional to 159,079.97, 219,531.11 and 87,464.63 is: 120,701.60
Step by Step Solution
- Step 1: Write the proportion equation
159,079.97 : 219,531.11 = 87,464.63 : x - Step 2: Convert to fraction form
159,079.97/219,531.11 = 87,464.63/x - Step 3: Cross multiply
159,079.97x = 219,531.11 × 87,464.63 - Step 4: Simplify right side
159,079.97x = 19,201,205,774.66 - Step 5: Solve for x
x = 19,201,205,774.66/159,079.97 - Step 6: Final answer
x = 120,701.60
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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.