Finding the Fourth Proportional to 103,635.21, 143,006.38 and 58,312.06
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Solution
The fourth proportional to 103,635.21, 143,006.38 and 58,312.06 is: 80,464.90
Step by Step Solution
- Step 1: Write the proportion equation
103,635.21 : 143,006.38 = 58,312.06 : x - Step 2: Convert to fraction form
103,635.21/143,006.38 = 58,312.06/x - Step 3: Cross multiply
103,635.21x = 143,006.38 × 58,312.06 - Step 4: Simplify right side
103,635.21x = 8,338,996,610.94 - Step 5: Solve for x
x = 8,338,996,610.94/103,635.21 - Step 6: Final answer
x = 80,464.90
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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.