Finding the Fourth Proportional to 159,561.46, 220,185.84 and 87,941.26
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Solution
The fourth proportional to 159,561.46, 220,185.84 and 87,941.26 is: 121,353.99
Step by Step Solution
- Step 1: Write the proportion equation
159,561.46 : 220,185.84 = 87,941.26 : x - Step 2: Convert to fraction form
159,561.46/220,185.84 = 87,941.26/x - Step 3: Cross multiply
159,561.46x = 220,185.84 × 87,941.26 - Step 4: Simplify right side
159,561.46x = 19,363,420,203.76 - Step 5: Solve for x
x = 19,363,420,203.76/159,561.46 - Step 6: Final answer
x = 121,353.99
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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.