Finding the Fourth Proportional to 102,912.18, 154,363.63 and 42,915.95
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Solution
The fourth proportional to 102,912.18, 154,363.63 and 42,915.95 is: 64,371.99
Step by Step Solution
- Step 1: Write the proportion equation
102,912.18 : 154,363.63 = 42,915.95 : x - Step 2: Convert to fraction form
102,912.18/154,363.63 = 42,915.95/x - Step 3: Cross multiply
102,912.18x = 154,363.63 × 42,915.95 - Step 4: Simplify right side
102,912.18x = 6,624,661,826.90 - Step 5: Solve for x
x = 6,624,661,826.90/102,912.18 - Step 6: Final answer
x = 64,371.99
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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.