Finding the Fourth Proportional to 159,611.13, 220,264.79 and 87,993.68
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Solution
The fourth proportional to 159,611.13, 220,264.79 and 87,993.68 is: 121,432.06
Step by Step Solution
- Step 1: Write the proportion equation
159,611.13 : 220,264.79 = 87,993.68 : x - Step 2: Convert to fraction form
159,611.13/220,264.79 = 87,993.68/x - Step 3: Cross multiply
159,611.13x = 220,264.79 × 87,993.68 - Step 4: Simplify right side
159,611.13x = 19,381,907,905.23 - Step 5: Solve for x
x = 19,381,907,905.23/159,611.13 - Step 6: Final answer
x = 121,432.06
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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.