Finding the Fourth Proportional to 102,883.57, 141,971.23 and 57,557.99
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Solution
The fourth proportional to 102,883.57, 141,971.23 and 57,557.99 is: 79,425.50
Step by Step Solution
- Step 1: Write the proportion equation
102,883.57 : 141,971.23 = 57,557.99 : x - Step 2: Convert to fraction form
102,883.57/141,971.23 = 57,557.99/x - Step 3: Cross multiply
102,883.57x = 141,971.23 × 57,557.99 - Step 4: Simplify right side
102,883.57x = 8,171,579,063.50 - Step 5: Solve for x
x = 8,171,579,063.50/102,883.57 - Step 6: Final answer
x = 79,425.50
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.