Finding the Fourth Proportional to 159,577.28, 220,218.18 and 87,960.08
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Solution
The fourth proportional to 159,577.28, 220,218.18 and 87,960.08 is: 121,385.76
Step by Step Solution
- Step 1: Write the proportion equation
159,577.28 : 220,218.18 = 87,960.08 : x - Step 2: Convert to fraction form
159,577.28/220,218.18 = 87,960.08/x - Step 3: Cross multiply
159,577.28x = 220,218.18 × 87,960.08 - Step 4: Simplify right side
159,577.28x = 19,370,408,730.25 - Step 5: Solve for x
x = 19,370,408,730.25/159,577.28 - Step 6: Final answer
x = 121,385.76
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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.