Finding the Fourth Proportional to 159,643.28, 220,078.82 and 125,592.63
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Solution
The fourth proportional to 159,643.28, 220,078.82 and 125,592.63 is: 173,137.75
Step by Step Solution
- Step 1: Write the proportion equation
159,643.28 : 220,078.82 = 125,592.63 : x - Step 2: Convert to fraction form
159,643.28/220,078.82 = 125,592.63/x - Step 3: Cross multiply
159,643.28x = 220,078.82 × 125,592.63 - Step 4: Simplify right side
159,643.28x = 27,640,277,811.10 - Step 5: Solve for x
x = 27,640,277,811.10/159,643.28 - Step 6: Final answer
x = 173,137.75
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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.