Finding the Fourth Proportional to 121,405.44, 167,539.68 and 70,427.82
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Solution
The fourth proportional to 121,405.44, 167,539.68 and 70,427.82 is: 97,190.49
Step by Step Solution
- Step 1: Write the proportion equation
121,405.44 : 167,539.68 = 70,427.82 : x - Step 2: Convert to fraction form
121,405.44/167,539.68 = 70,427.82/x - Step 3: Cross multiply
121,405.44x = 167,539.68 × 70,427.82 - Step 4: Simplify right side
121,405.44x = 11,799,454,425.90 - Step 5: Solve for x
x = 11,799,454,425.90/121,405.44 - Step 6: Final answer
x = 97,190.49
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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.