Finding the Fourth Proportional to 124,751.81, 172,157.50 and 68,163.19
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Solution
The fourth proportional to 124,751.81, 172,157.50 and 68,163.19 is: 94,065.20
Step by Step Solution
- Step 1: Write the proportion equation
124,751.81 : 172,157.50 = 68,163.19 : x - Step 2: Convert to fraction form
124,751.81/172,157.50 = 68,163.19/x - Step 3: Cross multiply
124,751.81x = 172,157.50 × 68,163.19 - Step 4: Simplify right side
124,751.81x = 11,734,804,037.24 - Step 5: Solve for x
x = 11,734,804,037.24/124,751.81 - Step 6: Final answer
x = 94,065.20
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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.