Finding the Fourth Proportional to 151,863.69, 209,574.09 and 88,201.48
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Solution
The fourth proportional to 151,863.69, 209,574.09 and 88,201.48 is: 121,719.32
Step by Step Solution
- Step 1: Write the proportion equation
151,863.69 : 209,574.09 = 88,201.48 : x - Step 2: Convert to fraction form
151,863.69/209,574.09 = 88,201.48/x - Step 3: Cross multiply
151,863.69x = 209,574.09 × 88,201.48 - Step 4: Simplify right side
151,863.69x = 18,484,744,907.65 - Step 5: Solve for x
x = 18,484,744,907.65/151,863.69 - Step 6: Final answer
x = 121,719.32
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1.5x scale
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.