Finding the Fourth Proportional to 106,163.74, 159,070.65 and 61,665.58
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Solution
The fourth proportional to 106,163.74, 159,070.65 and 61,665.58 is: 92,396.74
Step by Step Solution
- Step 1: Write the proportion equation
106,163.74 : 159,070.65 = 61,665.58 : x - Step 2: Convert to fraction form
106,163.74/159,070.65 = 61,665.58/x - Step 3: Cross multiply
106,163.74x = 159,070.65 × 61,665.58 - Step 4: Simplify right side
106,163.74x = 9,809,183,893.23 - Step 5: Solve for x
x = 9,809,183,893.23/106,163.74 - Step 6: Final answer
x = 92,396.74
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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.