Finding the Fourth Proportional to 156,934.49, 235,269.09 and 68,121.23
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Solution
The fourth proportional to 156,934.49, 235,269.09 and 68,121.23 is: 102,124.27
Step by Step Solution
- Step 1: Write the proportion equation
156,934.49 : 235,269.09 = 68,121.23 : x - Step 2: Convert to fraction form
156,934.49/235,269.09 = 68,121.23/x - Step 3: Cross multiply
156,934.49x = 235,269.09 × 68,121.23 - Step 4: Simplify right side
156,934.49x = 16,026,819,791.78 - Step 5: Solve for x
x = 16,026,819,791.78/156,934.49 - Step 6: Final answer
x = 102,124.27
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.