Finding the Fourth Proportional to 160,776.99, 221,884.79 and 89,171.01
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Solution
The fourth proportional to 160,776.99, 221,884.79 and 89,171.01 is: 123,062.95
Step by Step Solution
- Step 1: Write the proportion equation
160,776.99 : 221,884.79 = 89,171.01 : x - Step 2: Convert to fraction form
160,776.99/221,884.79 = 89,171.01/x - Step 3: Cross multiply
160,776.99x = 221,884.79 × 89,171.01 - Step 4: Simplify right side
160,776.99x = 19,785,690,382.08 - Step 5: Solve for x
x = 19,785,690,382.08/160,776.99 - Step 6: Final answer
x = 123,062.95
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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.