Finding the Fourth Proportional to 143,810.08, 198,458.91 and 80,151.99
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Solution
The fourth proportional to 143,810.08, 198,458.91 and 80,151.99 is: 110,610.30
Step by Step Solution
- Step 1: Write the proportion equation
143,810.08 : 198,458.91 = 80,151.99 : x - Step 2: Convert to fraction form
143,810.08/198,458.91 = 80,151.99/x - Step 3: Cross multiply
143,810.08x = 198,458.91 × 80,151.99 - Step 4: Simplify right side
143,810.08x = 15,906,876,569.73 - Step 5: Solve for x
x = 15,906,876,569.73/143,810.08 - Step 6: Final answer
x = 110,610.30
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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.