Finding the Fourth Proportional to 144,897.76, 199,857.86 and 140,020.75
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Solution
The fourth proportional to 144,897.76, 199,857.86 and 140,020.75 is: 193,130.99
Step by Step Solution
- Step 1: Write the proportion equation
144,897.76 : 199,857.86 = 140,020.75 : x - Step 2: Convert to fraction form
144,897.76/199,857.86 = 140,020.75/x - Step 3: Cross multiply
144,897.76x = 199,857.86 × 140,020.75 - Step 4: Simplify right side
144,897.76x = 27,984,246,451.31 - Step 5: Solve for x
x = 27,984,246,451.31/144,897.76 - Step 6: Final answer
x = 193,130.99
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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.