Finding the Fourth Proportional to 104,104.62, 143,665.40 and 56,358.99
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Solution
The fourth proportional to 104,104.62, 143,665.40 and 56,358.99 is: 77,775.96
Step by Step Solution
- Step 1: Write the proportion equation
104,104.62 : 143,665.40 = 56,358.99 : x - Step 2: Convert to fraction form
104,104.62/143,665.40 = 56,358.99/x - Step 3: Cross multiply
104,104.62x = 143,665.40 × 56,358.99 - Step 4: Simplify right side
104,104.62x = 8,096,836,665.82 - Step 5: Solve for x
x = 8,096,836,665.82/104,104.62 - Step 6: Final answer
x = 77,775.96
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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.