Finding the Fourth Proportional to 102,893.70, 154,340.55 and 29,021.70
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Solution
The fourth proportional to 102,893.70, 154,340.55 and 29,021.70 is: 43,532.55
Step by Step Solution
- Step 1: Write the proportion equation
102,893.70 : 154,340.55 = 29,021.70 : x - Step 2: Convert to fraction form
102,893.70/154,340.55 = 29,021.70/x - Step 3: Cross multiply
102,893.70x = 154,340.55 × 29,021.70 - Step 4: Simplify right side
102,893.70x = 4,479,225,139.94 - Step 5: Solve for x
x = 4,479,225,139.94/102,893.70 - Step 6: Final answer
x = 43,532.55
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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.