Finding the Fourth Proportional to 159,754.54, 220,459.80 and 88,135.12
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Solution
The fourth proportional to 159,754.54, 220,459.80 and 88,135.12 is: 121,625.66
Step by Step Solution
- Step 1: Write the proportion equation
159,754.54 : 220,459.80 = 88,135.12 : x - Step 2: Convert to fraction form
159,754.54/220,459.80 = 88,135.12/x - Step 3: Cross multiply
159,754.54x = 220,459.80 × 88,135.12 - Step 4: Simplify right side
159,754.54x = 19,430,250,928.18 - Step 5: Solve for x
x = 19,430,250,928.18/159,754.54 - Step 6: Final answer
x = 121,625.66
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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.