Finding the Fourth Proportional to 103,433.30, 155,149.95 and 92,935.70
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Solution
The fourth proportional to 103,433.30, 155,149.95 and 92,935.70 is: 139,403.55
Step by Step Solution
- Step 1: Write the proportion equation
103,433.30 : 155,149.95 = 92,935.70 : x - Step 2: Convert to fraction form
103,433.30/155,149.95 = 92,935.70/x - Step 3: Cross multiply
103,433.30x = 155,149.95 × 92,935.70 - Step 4: Simplify right side
103,433.30x = 14,418,969,208.22 - Step 5: Solve for x
x = 14,418,969,208.22/103,433.30 - Step 6: Final answer
x = 139,403.55
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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.