Finding the Fourth Proportional to 102,959.57, 154,403.16 and 30,890.99
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Solution
The fourth proportional to 102,959.57, 154,403.16 and 30,890.99 is: 46,325.63
Step by Step Solution
- Step 1: Write the proportion equation
102,959.57 : 154,403.16 = 30,890.99 : x - Step 2: Convert to fraction form
102,959.57/154,403.16 = 30,890.99/x - Step 3: Cross multiply
102,959.57x = 154,403.16 × 30,890.99 - Step 4: Simplify right side
102,959.57x = 4,769,666,471.53 - Step 5: Solve for x
x = 4,769,666,471.53/102,959.57 - Step 6: Final answer
x = 46,325.63
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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.