Finding the Fourth Proportional to 112,467.20, 155,203.20 and 62,163.20
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Solution
The fourth proportional to 112,467.20, 155,203.20 and 62,163.20 is: 85,784.37
Step by Step Solution
- Step 1: Write the proportion equation
112,467.20 : 155,203.20 = 62,163.20 : x - Step 2: Convert to fraction form
112,467.20/155,203.20 = 62,163.20/x - Step 3: Cross multiply
112,467.20x = 155,203.20 × 62,163.20 - Step 4: Simplify right side
112,467.20x = 9,647,927,562.24 - Step 5: Solve for x
x = 9,647,927,562.24/112,467.20 - Step 6: Final answer
x = 85,784.37
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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.