Finding the Fourth Proportional to 198,159.50, 273,508.74 and 121,696.82
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Solution
The fourth proportional to 198,159.50, 273,508.74 and 121,696.82 is: 167,971.47
Step by Step Solution
- Step 1: Write the proportion equation
198,159.50 : 273,508.74 = 121,696.82 : x - Step 2: Convert to fraction form
198,159.50/273,508.74 = 121,696.82/x - Step 3: Cross multiply
198,159.50x = 273,508.74 × 121,696.82 - Step 4: Simplify right side
198,159.50x = 33,285,142,532.66 - Step 5: Solve for x
x = 33,285,142,532.66/198,159.50 - Step 6: Final answer
x = 167,971.47
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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.