Finding the Fourth Proportional to 143,817.99, 198,469.74 and 80,159.82
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Solution
The fourth proportional to 143,817.99, 198,469.74 and 80,159.82 is: 110,621.06
Step by Step Solution
- Step 1: Write the proportion equation
143,817.99 : 198,469.74 = 80,159.82 : x - Step 2: Convert to fraction form
143,817.99/198,469.74 = 80,159.82/x - Step 3: Cross multiply
143,817.99x = 198,469.74 × 80,159.82 - Step 4: Simplify right side
143,817.99x = 15,909,298,633.85 - Step 5: Solve for x
x = 15,909,298,633.85/143,817.99 - Step 6: Final answer
x = 110,621.06
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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.