Finding the Fourth Proportional to 163,605.21, 225,839.51 and 103,163.82
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Solution
The fourth proportional to 163,605.21, 225,839.51 and 103,163.82 is: 142,406.63
Step by Step Solution
- Step 1: Write the proportion equation
163,605.21 : 225,839.51 = 103,163.82 : x - Step 2: Convert to fraction form
163,605.21/225,839.51 = 103,163.82/x - Step 3: Cross multiply
163,605.21x = 225,839.51 × 103,163.82 - Step 4: Simplify right side
163,605.21x = 23,298,466,558.53 - Step 5: Solve for x
x = 23,298,466,558.53/163,605.21 - Step 6: Final answer
x = 142,406.63
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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.