Finding the Fourth Proportional to 137,276.08, 188,869.26 and 121,072.84
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Solution
The fourth proportional to 137,276.08, 188,869.26 and 121,072.84 is: 166,576.27
Step by Step Solution
- Step 1: Write the proportion equation
137,276.08 : 188,869.26 = 121,072.84 : x - Step 2: Convert to fraction form
137,276.08/188,869.26 = 121,072.84/x - Step 3: Cross multiply
137,276.08x = 188,869.26 × 121,072.84 - Step 4: Simplify right side
137,276.08x = 22,866,937,696.90 - Step 5: Solve for x
x = 22,866,937,696.90/137,276.08 - Step 6: Final answer
x = 166,576.27
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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.