Finding the Fourth Proportional to 101,912.19, 140,634.12 and 56,593.07
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Solution
The fourth proportional to 101,912.19, 140,634.12 and 56,593.07 is: 78,095.83
Step by Step Solution
- Step 1: Write the proportion equation
101,912.19 : 140,634.12 = 56,593.07 : x - Step 2: Convert to fraction form
101,912.19/140,634.12 = 56,593.07/x - Step 3: Cross multiply
101,912.19x = 140,634.12 × 56,593.07 - Step 4: Simplify right side
101,912.19x = 7,958,916,436.21 - Step 5: Solve for x
x = 7,958,916,436.21/101,912.19 - Step 6: Final answer
x = 78,095.83
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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.