Finding the Fourth Proportional to 163,203.90, 225,163.63 and 106,648.08
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Solution
The fourth proportional to 163,203.90, 225,163.63 and 106,648.08 is: 147,136.61
Step by Step Solution
- Step 1: Write the proportion equation
163,203.90 : 225,163.63 = 106,648.08 : x - Step 2: Convert to fraction form
163,203.90/225,163.63 = 106,648.08/x - Step 3: Cross multiply
163,203.90x = 225,163.63 × 106,648.08 - Step 4: Simplify right side
163,203.90x = 24,013,268,825.33 - Step 5: Solve for x
x = 24,013,268,825.33/163,203.90 - Step 6: Final answer
x = 147,136.61
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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.