Finding the Fourth Proportional to 124,206.72, 171,399.84 and 67,618.08
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Solution
The fourth proportional to 124,206.72, 171,399.84 and 67,618.08 is: 93,309.99
Step by Step Solution
- Step 1: Write the proportion equation
124,206.72 : 171,399.84 = 67,618.08 : x - Step 2: Convert to fraction form
124,206.72/171,399.84 = 67,618.08/x - Step 3: Cross multiply
124,206.72x = 171,399.84 × 67,618.08 - Step 4: Simplify right side
124,206.72x = 11,589,728,093.11 - Step 5: Solve for x
x = 11,589,728,093.11/124,206.72 - Step 6: Final answer
x = 93,309.99
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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.