Finding the Fourth Proportional to 143,618.16, 198,226.08 and 93,229.68
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Solution
The fourth proportional to 143,618.16, 198,226.08 and 93,229.68 is: 128,678.39
Step by Step Solution
- Step 1: Write the proportion equation
143,618.16 : 198,226.08 = 93,229.68 : x - Step 2: Convert to fraction form
143,618.16/198,226.08 = 93,229.68/x - Step 3: Cross multiply
143,618.16x = 198,226.08 × 93,229.68 - Step 4: Simplify right side
143,618.16x = 18,480,554,006.05 - Step 5: Solve for x
x = 18,480,554,006.05/143,618.16 - Step 6: Final answer
x = 128,678.39
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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.