Finding the Fourth Proportional to 143,175.14, 197,582.16 and 79,512.94
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Solution
The fourth proportional to 143,175.14, 197,582.16 and 79,512.94 is: 109,728.12
Step by Step Solution
- Step 1: Write the proportion equation
143,175.14 : 197,582.16 = 79,512.94 : x - Step 2: Convert to fraction form
143,175.14/197,582.16 = 79,512.94/x - Step 3: Cross multiply
143,175.14x = 197,582.16 × 79,512.94 - Step 4: Simplify right side
143,175.14x = 15,710,338,754.67 - Step 5: Solve for x
x = 15,710,338,754.67/143,175.14 - Step 6: Final answer
x = 109,728.12
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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.