Finding the Fourth Proportional to 140,202.05, 193,473.36 and 76,540.37
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Solution
The fourth proportional to 140,202.05, 193,473.36 and 76,540.37 is: 105,622.72
Step by Step Solution
- Step 1: Write the proportion equation
140,202.05 : 193,473.36 = 76,540.37 : x - Step 2: Convert to fraction form
140,202.05/193,473.36 = 76,540.37/x - Step 3: Cross multiply
140,202.05x = 193,473.36 × 76,540.37 - Step 4: Simplify right side
140,202.05x = 14,808,521,592.18 - Step 5: Solve for x
x = 14,808,521,592.18/140,202.05 - Step 6: Final answer
x = 105,622.72
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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.