Finding the Fourth Proportional to 159,513.30, 220,138.02 and 87,893.24
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Solution
The fourth proportional to 159,513.30, 220,138.02 and 87,893.24 is: 121,297.99
Step by Step Solution
- Step 1: Write the proportion equation
159,513.30 : 220,138.02 = 87,893.24 : x - Step 2: Convert to fraction form
159,513.30/220,138.02 = 87,893.24/x - Step 3: Cross multiply
159,513.30x = 220,138.02 × 87,893.24 - Step 4: Simplify right side
159,513.30x = 19,348,642,724.29 - Step 5: Solve for x
x = 19,348,642,724.29/159,513.30 - Step 6: Final answer
x = 121,297.99
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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.