Finding the Fourth Proportional to 112,727.24, 155,563.34 and 61,739.99
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Solution
The fourth proportional to 112,727.24, 155,563.34 and 61,739.99 is: 85,201.04
Step by Step Solution
- Step 1: Write the proportion equation
112,727.24 : 155,563.34 = 61,739.99 : x - Step 2: Convert to fraction form
112,727.24/155,563.34 = 61,739.99/x - Step 3: Cross multiply
112,727.24x = 155,563.34 × 61,739.99 - Step 4: Simplify right side
112,727.24x = 9,604,477,969.45 - Step 5: Solve for x
x = 9,604,477,969.45/112,727.24 - Step 6: Final answer
x = 85,201.04
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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.