Finding the Fourth Proportional to 104,184.82, 143,775.74 and 56,438.13
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Solution
The fourth proportional to 104,184.82, 143,775.74 and 56,438.13 is: 77,884.99
Step by Step Solution
- Step 1: Write the proportion equation
104,184.82 : 143,775.74 = 56,438.13 : x - Step 2: Convert to fraction form
104,184.82/143,775.74 = 56,438.13/x - Step 3: Cross multiply
104,184.82x = 143,775.74 × 56,438.13 - Step 4: Simplify right side
104,184.82x = 8,114,433,622.78 - Step 5: Solve for x
x = 8,114,433,622.78/104,184.82 - Step 6: Final answer
x = 77,884.99
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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.