Finding the Fourth Proportional to 155,521.87, 214,655.19 and 101,775.75
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Solution
The fourth proportional to 155,521.87, 214,655.19 and 101,775.75 is: 140,473.44
Step by Step Solution
- Step 1: Write the proportion equation
155,521.87 : 214,655.19 = 101,775.75 : x - Step 2: Convert to fraction form
155,521.87/214,655.19 = 101,775.75/x - Step 3: Cross multiply
155,521.87x = 214,655.19 × 101,775.75 - Step 4: Simplify right side
155,521.87x = 21,846,691,767.03 - Step 5: Solve for x
x = 21,846,691,767.03/155,521.87 - Step 6: Final answer
x = 140,473.44
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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.