Finding the Fourth Proportional to 117,252.40, 161,881.68 and 90,343.84
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Solution
The fourth proportional to 117,252.40, 161,881.68 and 90,343.84 is: 124,731.03
Step by Step Solution
- Step 1: Write the proportion equation
117,252.40 : 161,881.68 = 90,343.84 : x - Step 2: Convert to fraction form
117,252.40/161,881.68 = 90,343.84/x - Step 3: Cross multiply
117,252.40x = 161,881.68 × 90,343.84 - Step 4: Simplify right side
117,252.40x = 14,625,012,596.85 - Step 5: Solve for x
x = 14,625,012,596.85/117,252.40 - Step 6: Final answer
x = 124,731.03
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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.