Finding the Fourth Proportional to 142,802.37, 197,044.79 and 79,137.99
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Solution
The fourth proportional to 142,802.37, 197,044.79 and 79,137.99 is: 109,197.97
Step by Step Solution
- Step 1: Write the proportion equation
142,802.37 : 197,044.79 = 79,137.99 : x - Step 2: Convert to fraction form
142,802.37/197,044.79 = 79,137.99/x - Step 3: Cross multiply
142,802.37x = 197,044.79 × 79,137.99 - Step 4: Simplify right side
142,802.37x = 15,593,728,224.88 - Step 5: Solve for x
x = 15,593,728,224.88/142,802.37 - Step 6: Final answer
x = 109,197.97
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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.