Finding the Fourth Proportional to 144,233.84, 199,042.21 and 79,701.28
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Solution
The fourth proportional to 144,233.84, 199,042.21 and 79,701.28 is: 109,987.50
Step by Step Solution
- Step 1: Write the proportion equation
144,233.84 : 199,042.21 = 79,701.28 : x - Step 2: Convert to fraction form
144,233.84/199,042.21 = 79,701.28/x - Step 3: Cross multiply
144,233.84x = 199,042.21 × 79,701.28 - Step 4: Simplify right side
144,233.84x = 15,863,918,911.03 - Step 5: Solve for x
x = 15,863,918,911.03/144,233.84 - Step 6: Final answer
x = 109,987.50
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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.