Finding the Fourth Proportional to 159,398.24, 220,167.11 and 115,721.12
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Solution
The fourth proportional to 159,398.24, 220,167.11 and 115,721.12 is: 159,838.55
Step by Step Solution
- Step 1: Write the proportion equation
159,398.24 : 220,167.11 = 115,721.12 : x - Step 2: Convert to fraction form
159,398.24/220,167.11 = 115,721.12/x - Step 3: Cross multiply
159,398.24x = 220,167.11 × 115,721.12 - Step 4: Simplify right side
159,398.24x = 25,477,984,467.25 - Step 5: Solve for x
x = 25,477,984,467.25/159,398.24 - Step 6: Final answer
x = 159,838.55
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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.