Finding the Fourth Proportional to 103,614.10, 155,497.95 and 68,542.10
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Solution
The fourth proportional to 103,614.10, 155,497.95 and 68,542.10 is: 102,863.95
Step by Step Solution
- Step 1: Write the proportion equation
103,614.10 : 155,497.95 = 68,542.10 : x - Step 2: Convert to fraction form
103,614.10/155,497.95 = 68,542.10/x - Step 3: Cross multiply
103,614.10x = 155,497.95 × 68,542.10 - Step 4: Simplify right side
103,614.10x = 10,658,156,038.70 - Step 5: Solve for x
x = 10,658,156,038.70/103,614.10 - Step 6: Final answer
x = 102,863.95
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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.