Finding the Fourth Proportional to 144,491.99, 199,395.95 and 79,961.20
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Solution
The fourth proportional to 144,491.99, 199,395.95 and 79,961.20 is: 110,344.80
Step by Step Solution
- Step 1: Write the proportion equation
144,491.99 : 199,395.95 = 79,961.20 : x - Step 2: Convert to fraction form
144,491.99/199,395.95 = 79,961.20/x - Step 3: Cross multiply
144,491.99x = 199,395.95 × 79,961.20 - Step 4: Simplify right side
144,491.99x = 15,943,938,538.84 - Step 5: Solve for x
x = 15,943,938,538.84/144,491.99 - Step 6: Final answer
x = 110,344.80
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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.