Finding the Fourth Proportional to 102,104.24, 140,905.08 and 57,391.28
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Solution
The fourth proportional to 102,104.24, 140,905.08 and 57,391.28 is: 79,200.66
Step by Step Solution
- Step 1: Write the proportion equation
102,104.24 : 140,905.08 = 57,391.28 : x - Step 2: Convert to fraction form
102,104.24/140,905.08 = 57,391.28/x - Step 3: Cross multiply
102,104.24x = 140,905.08 × 57,391.28 - Step 4: Simplify right side
102,104.24x = 8,086,722,899.70 - Step 5: Solve for x
x = 8,086,722,899.70/102,104.24 - Step 6: Final answer
x = 79,200.66
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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.